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    ND FILTER

    ND FILTER
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    NOTCH FILTER

    Discover Z-Optics Notch Filters, precision-engineered optical components designed to selectively block specific wavelengths with high accuracy while maintaining excellent transmission outside the blocked band. Our notch filters are ideal for advanced optical systems requiring precise wavelength control, such as laser protection, fluorescence microscopy, Raman spectroscopy, and telecommunications.

    Key features of Z-Optics Notch Filters include:
    • Center Wavelengths: Available at 532 nm and 615 nm, tailored to your application needs.
    • FWHM (Full Width at Half Maximum): Ranges from 30 nm to 60 nm, ensuring effective spectral selectivity.
    • High Optical Density (OD): Up to OD 7, guaranteeing deep attenuation of unwanted wavelengths for improved signal clarity.
    • Wide Transmission Range: Efficiently transmits wavelengths outside the rejection band, supporting high system throughput.
    • Superior Coating Technology: Designed using advanced multilayer interference coatings for precise blocking and minimal insertion loss.
    • Durability and Stability: Crafted to maintain performance under varying environmental conditions, suitable for demanding industrial and scientific environments.
    Z-Optics Notch Filters utilize thin-film interference to achieve high rejection ratios at target wavelengths, while allowing the passage of other wavelengths with minimal loss. This makes them essential for applications where eliminating laser lines or specific spectral components enhances system accuracy and reduces noise. Choose Z-Optics Notch Filters for your optical system to benefit from enhanced wavelength isolation, reliable performance, and customizable options to meet exact project specifications. Elevate your optical setup with filters that deliver precision and efficiency in one compact component
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    DICHROIC FILTER

    Dichroic Filter from Z-Optics is a precision optical component designed to selectively transmit and reflect specific wavelengths of light, enhancing color separation and spectral control in various high-performance optical systems. These filters operate using thin-film interference technology and are typically set at a 45° angle of incidence, reflecting undesired wavelengths while transmitting the targeted light spectrum with high efficiency and durability....

    Our dichroic filters are manufactured with high-quality UV-grade fused silica substrates, offering excellent resistance to abrasion and temperature variations. The hard dielectric coatings applied using ion beam sputtering (IBS) technology ensure long life without color degradation. The standard size is 25.2 mm by 35.6 mm by 1 mm with custom dimensions available upon request. Key features include a sharp transition edge between reflection and transmission bands, a high laser damage threshold, and excellent spectral stability, making them ideal for demanding optical applications. Applications of Z-Optics Dichroic Filters:
    • LCD Projection Systems: Efficiently separate RGB light components for accurate color rendering.
    • Fluorescence Microscopy: Selectively transmit excitation or emission wavelengths for enhanced imaging contrast.
    • Laser Harmonic Separation: Isolate specific laser wavelengths for precision optical experiments or manufacturing.
    • Multispectral Imaging: Enable high-fidelity wavelength filtering for remote sensing and scientific instrumentation.
    • UV Water Purification Monitoring: Control UV and visible light separation for sensor accuracy.
    • Color Separation in Lighting Fixtures: Improve color quality and energy efficiency in architectural and stage lighting.
    • Optical Instruments: Used in beam splitters and mirrors for aerospace, medical devices, and spectroscopy.
    Experience superior optical performance and durability with Z-Optics dichroic filters tailored to meet your specific wavelength control needs. Contact us for custom specifications or bulk orders.
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    LONGPASS FILTER

    High-Performance Optical Components by Z-Optics Longpass filters are precision optical components designed to transmit wavelengths longer than a specified cutoff while blocking shorter wavelengths. These filters are essential in many advanced optical systems, providing excellent optical density (OD) and reliable wavelength selectivity over wide spectral ranges. Z-Optics offers a comprehensive range of longpass filters with various cut-on wavelengths, operational wavelength ranges, and standard dimension options to suit diverse industrial and scientific needs.

    Applications of Z-Optics Longpass Filters
    • Fluorescence Microscopy: Separating emitted fluorescence signals from excitation excitation light for enhanced imaging clarity and accuracy.
    • Spectroscopy: Isolating specific longer wavelengths for material analysis, Raman spectroscopy, and multispectral imaging.
    • Medical Imaging: Enhancing contrast by blocking UV and unwanted short wavelengths in devices like endoscopes and ophthalmic instruments.
    • Laser Systems: Filtering out shorter wavelengths to ensure laser beam purity for medical, industrial cutting, or engraving applications.
    • Environmental Monitoring: Infrared longpass filters aid in detecting heat signatures and atmospheric sensing by blocking visible light while transmitting IR radiation.
    • Astronomy: Reducing effects of light pollution by filtering out shorter wavelengths to observe distant celestial bodies in specific spectral bands.
    • Consumer Electronics: Improving image quality in cameras and smartphones by blocking haze-inducing short wavelengths and protecting eyes from harmful blue light.
    Z-Optics longpass filters are crafted to meet rigorous optical standards, ensuring dependable performance in demanding environments. Choose Z-Optics for your longpass filtering needs—where precision meets customization for superior spectral control
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    SHORTPASS FILTER

    At Z-Optics, our SHORTPASS FILTERS are precision-engineered optical filters designed to transmit wavelengths shorter than a specified cut-off point while effectively blocking longer wavelengths. These filters provide excellent optical density (OD) and broad operational wavelength ranges, making them indispensable components in diverse optical and photonics systems requiring sharp spectral cutoff.

    Key Features

    • Precise Cut-Off Wavelengths: Available across a range of cut-off wavelengths from 395 nm up to 950 nm, tailored for diverse UV, Visible, and NIR applications.
    • High Optical Density (OD): Optical blocking strength of OD3 to OD5 ensures minimal transmission of unwanted wavelengths, enhancing signal clarity and contrast.
    • Broad Wavelength Operation: Supports extended wavelength ranges from 200 nm up to 1100 nm depending on the model, allowing flexible integration in various optical setups.
    • Standard Diameters: Available in 12.7 mm and 25.4 mm diameters, compatible with most optical mounts and instrumentation.
    • Durable Coatings: Advanced multilayer dielectric coatings offer long-term stability, high laser damage thresholds, and resistance to environmental factors.
    • Customizable Options: Filters can be customized for specific cut-off wavelengths, diameter sizes, and operational ranges to suit unique application needs.

    Applications

    • Spectroscopy systems requiring sharp wavelength cutoff for signal isolation.
    • Fluorescence microscopy and biomedical imaging to separate excitation and emission bands.
    • Laser safety and beam shaping in industrial and scientific laser systems.
    • Optical sensing and environmental monitoring devices where wavelength selection is critical.
    • Machine vision and quality control inspection systems operating under variable lighting.
    • Multispectral and hyperspectral imaging to enhance spectral discrimination.
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    BANDPASS FILTER – FWHM>60nm

    At Z-Optics, we offer high-performance bandpass filters with a Full Width at Half Maximum (FWHM) greater than 60 nm, expertly engineered to provide broad spectral selection for applications where wider bandwidths are essential. These filters deliver reliable wavelength isolation with high transmission efficiency, making them ideal for everyday industrial, scientific, and imaging applications that require consistent performance in demanding environments.

    Key Features
    • Wide Bandwidth: FWHM > 60 nm enables effective transmission of broader spectral bands supporting applications where larger wavelength windows are advantageous.
    • High Transmission Efficiency: Designed for peak transmission rates exceeding 85%, ensuring maximum light throughput for enhanced signal strength and sensitivity.
    • Reliable Out-of-Band Blocking: OD3 to OD4 blocking minimizes unwanted wavelengths and stray light ensuring signal clarity.
    • Durable and Stable Coatings: Optical coatings engineered for long-term stability and performance over a wide environmental range, suitable for both lab and field use.
    • Versatile Spectral Range: Available across UV, VIS, and NIR regions to accommodate diverse application needs.
    • Customizable Options: Filters can be tailored to precise wavelength ranges and physical dimensions to fit specific system requirements.
    Applications
    • Multispectral and hyperspectral imaging systems
    • Optical instrumentation and sensor technology
    • Fluorescence and chemiluminescence analysis where wider bandwidths improve signal capture
    • Environmental monitoring instruments
    • Industrial machine vision where broad spectral bands facilitate object detection under varying illumination
    • Biomedical diagnostics requiring sensitive yet broad spectral filtering
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    BANDPASS FILTER – FWHM 50~60nm

    At Z-Optics, we offer premium-quality bandpass filters with a Full Width at Half Maximum (FWHM) of 50 to 60 nm, engineered to provide excellent spectral selection in a wider bandwidth range. These filters deliver reliable wavelength isolation with high transmission and effective out-of-band blocking, making them ideal for applications where broader spectral control is essential.

    Key Features
    • Wide Bandwidth Control: FWHM of 50–60 nm provides effective isolation of target spectral regions while allowing a broader range of wavelengths to pass through for diverse applications.
    • High Transmission Efficiency: Achieves over 85% peak transmission ensuring optimal light throughput with minimal losses.
    • Strong Out-of-Band Blocking: OD3 to OD4 blocking outside the passband reduces unwanted stray light for enhanced signal clarity.
    • Durable Optical Coatings: Designed for high durability and environmental stability, suitable for both laboratory and field use.
    • Customizable Centre Wavelength: Available across UV, visible, and near-infrared regions, with ±1 nm wavelength tolerance tailored to your system requirements.
    • Compact and Robust Design: Precision mounted filters compatible with standard optical holders and instruments.
    Applications
    • Fluorescence Imaging and Spectroscopy: Enables selection of excitation or emission bands with broader spectral tolerance.
    • Multispectral and Hyperspectral Imaging: Provides controlled spectral bands for imaging applications requiring medium bandwidth filters.
    • Environmental and Biological Sensing: Enhances detection of analytes across wider spectral signatures.
    • Laser Systems & Optical Communications: Ideal for wavelength selection and noise reduction in systems requiring mid-range FWHM filtering.
    • Industrial Process Monitoring: Facilitates spectral isolation of emissions or reflections in process control.
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    BANDPASS FILTER – FWHM 40~50nm

    At Z-Optics, our bandpass filters with FWHM 40~50 nm deliver reliable wavelength selection tailored for applications requiring moderate spectral resolution. These filters offer broad bandwidth suitable for fluorescence imaging, LED-based illumination systems, optical communication, and general light filtering applications — ensuring high transmission and efficient out-of-band rejection for enhanced optical system performance.

    Key Features
    • Moderate Bandwidth: FWHM 40~50 nm offering broad spectral filtering, ideal for less stringent wavelength isolation without compromising signal clarity.
    • High Transmission Efficiency: Typically exceeding 85% peak transmission, maximizing light throughput to boost system sensitivity and efficiency.
    • Excellent Out-of-Band Blocking: OD3 or better attenuation minimizes background noise caused by stray light and unwanted wavelengths.
    • Robust and Stable Design: Suitable for demanding environments with durable coatings ensuring long-term spectral stability and mechanical reliability.
    • Versatile Spectral Range: Available across visible and near-infrared ranges to support diverse applications from bioimaging to industrial optical setups.
    • Customizable Options: Center wavelengths and filter sizes can be tailored to meet specific system requirements.
    Applications
    • Fluorescence Imaging and Detection
    • LED Illumination and Lighting Control
    • Optical Communication Channels
    • Environmental and Chemical Sensing
    • Machine Vision and Inspection Systems
    • Photometric and Colorimetry Equipment
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    BANDPASS FILTER – FWHM 20~35nm

    At Z-Optics, our bandpass filters with FWHM 20–35 nm deliver reliable spectral filtering solutions for applications requiring moderate bandwidth and superior optical performance. Designed for enhanced light transmission and effective out-of-band blocking, these filters are ideal for fluorescence imaging, biomedical diagnostics, laser line isolation, and multispectral sensing technologies.

    Key Features
    • Optimized Bandwidth: FWHM ranging from 20 to 35 nm for balanced spectral selectivity, enabling clear isolation of target wavelengths while maintaining sufficient light throughput.
    • High Transmission Efficiency: Delivers up to 85% peak transmission at center wavelengths for improved signal strength and sensitivity in your optical system.
    • Robust Out-of-Band Blocking: OD3 or better blocking outside passband to suppress unwanted spectral components and reduce background noise.
    • Durable Coatings: Advanced dielectric coatings ensure stability and durability for demanding operational environments.
    • Versatile Spectral Range: Available in UV, visible, and NIR bands to suit diverse application needs from life sciences to industrial instrumentation.
    • Precision Wavelength Control: Center wavelength tolerance within ±1 nm for consistent, repeatable filtering performance.
    • Compact Form Factor: Compatible with standard optical setups and can be custom-sized upon request.
    Common Applications
    • Fluorescence microscopy and imaging
    • Laser line selection and suppression
    • Biomedical and diagnostic instrumentation
    • Environmental and chemical sensing
    • Multispectral and hyperspectral imaging systems
    • Optical communication and photonics research
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    BANDPASS FILTER – FWHM 10~15nm

    At Z-Optics, our bandpass filters with a Full Width at Half Maximum (FWHM) of 10 to 15 nm are engineered for versatile optical systems requiring moderate spectral selectivity. These filters strike the perfect balance between spectral bandwidth and transmission efficiency, making them ideal for a wide range of scientific, industrial, and medical applications. With excellent out-of-band blocking and stable center wavelength control, they ensure consistent performance and reliable signal isolation.

    Key Features
    • Moderate Bandwidth: FWHM 10~15 nm ideal for applications where a balance of selectivity and throughput is required.
    • High Transmission: Achieves up to 85% peak transmission, maximizing usable signal intensity.
    • Strong Out-of-Band Rejection: Optical Density 3 to 4 blocking ensures minimized stray light for improved measurement accuracy.
    • Precision Centre Wavelength: Accurate within ±0.5 nm to ensure repeatable and reliable filter performance.
    • Durable Coatings: Advanced dielectric coatings provide long-term stability and environmental resistance.
    • Customizable Specifications: Available across UV, visible, and near-infrared spectral regions per customer requirements.
    Applications
    • Fluorescence microscopy and imaging
    • Laser line selection and spectral cleaning
    • Environmental and chemical sensing
    • Biomedical optics and diagnostic instrumentation
    • Raman spectroscopy with moderate spectral resolution needs
    • Optical communications and signal processing
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    BANDPASS FILTER – FWHM 5~6nm

    At Z-Optics, we design premium bandpass filters with FWHM 5~6 nm tailored for applications requiring a balance of spectral selectivity and high throughput, including advanced imaging, fluorescence, and laser systems. Our filters deliver excellent wavelength isolation, high peak transmission, and robust out-of-band blocking to enhance signal fidelity and system sensitivity.

    Key Features
    • Precise Spectral Bandwidth: FWHM 5~6 nm, enabling well-defined wavelength selection that reduces spectral noise without sacrificing throughput.
    • High Transmission Efficiency: Achieve up to 90% peak transmission at center wavelengths, maximizing light delivery for sensitive detection applications.
    • Strong Out-of-Band Blocking: Optical Density (OD) 4 or better blocking outside the passband, minimizing stray and background light for superior signal-to-noise ratios.
    • Accurate Center Wavelength Control: Center wavelength tolerance of ±0.5 nm assures consistent performance and reliable system calibration.
    • Durable Hard-Coated Optical Construction: Multi-layer dielectric coatings on UV fused silica substrates ensure long-lasting filter stability and resistance to environmental factors.
    Customizable Options: Available center wavelengths span UV to NIR regions with mounted sizes for easy integration into optical setups.

    The Bandpass Filter – FWHM 5~6nm from Z-Optics is ideally suited for a variety of high-precision optical applications where selective wavelength transmission and minimal spectral interference are critical. Key applications include:

    • Fluorescence Spectroscopy: Enables precise isolation of emission lines, improving signal clarity and analytical accuracy in biological and chemical fluorescence measurements.

    • Laser Line Selection: Ensures only the laser’s target wavelength passes while blocking other spectral components, enhancing laser system stability and performance.

    • Raman Spectroscopy: Provides spectral filtering to isolate Raman scattering signals with reduced background, crucial for materials identification and chemical analysis.

    • Optical Sensing and Imaging: Enhances performance of sensors and imaging devices by delivering high transmission at the desired wavelength with minimal noise, improving detection sensitivity.

    • Environmental and Medical Diagnostics: Supports systems requiring accurate spectral filtering to detect trace gases, biomarkers, or other analytes with high specificity.

    • Scientific Research and Instrumentation: Fits into advanced optical setups requiring calibration-grade wavelength stability and repeatability for experimental consistency.

    These applications leverage the filter’s combination of narrow bandwidth, high transmission, and strong out-of-band rejection to improve the fidelity and sensitivity of optical measurements and systems.

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    BANDPASS FILTER – FWHM 2~3nm

    At Z-Optics, we design precision bandpass filters with a Full Width Half Maximum (FWHM) of 2~3 nm, engineered for applications requiring outstanding spectral selectivity such as LiDAR systems, fluorescence spectroscopy, astronomical observation, and advanced sensor technologies. Our bandpass filters deliver ultra-narrow bandwidths that effectively minimize noise and spectral overlap, enhancing signal clarity even in challenging environments like light-polluted astronomical settings or complex laser setups.

    Key Features
    • Narrow Bandwidth: Precisely controlled FWHM of 2–3 nm allows for accurate isolation of target wavelengths, reducing interference and maximizing detection sensitivity.
    • High Transmission: Achieving transmission rates typically above 85–90% at center wavelengths, ensuring optimal light throughput for high-efficiency optical systems.
    • Robust Out-of-Band Blocking: High optical density blocking (e.g., OD4 or better) outside the passband to eliminate stray light and improve signal-to-noise ratio.
    • Stable Center Wavelength: Tight tolerance on center wavelength (±0.3–0.5 nm), providing repeatable and calibration-grade performance suitable for demanding scientific and industrial uses.
    • Wide Spectral Range: Available across UV to NIR wavelengths to match your specific application needs.
    Our 2~3 nm FWHM bandpass filters are especially valuable in:
    • Astronomical Observation: Efficiently suppress light pollution and spectral overlap to enable clear imaging of celestial objects such as nebulae.
    • LiDAR Systems: Deliver precise wavelength matching and wide-angle stability to ensure accurate long-range ranging and detection.
    • Laser Line Selection: Isolate narrow laser emission lines with minimal spectral distortion, critical for Raman spectroscopy and fluorescence excitation.
    • Advanced Medical and Scientific Instruments: Enhance signal integrity and minimize background noise in fluorescence sensors and spectroscopy devices.
    • By integrating our ultra-narrow 2–3 nm bandpass filters into your optical systems, you benefit from high transmission efficiency, excellent out-of-band rejection, and precise spectral control, boosting the performance and reliability of your instruments.
    This carefully optimized combination of bandwidth, transmission, and blocking characteristics makes our 2–3 nm FWHM bandpass filters ideal for high-performance optical instrumentation requiring ultra-narrow spectral filtering
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    BANDPASS FILTER – FWHM 1~2nm

    At Z-Optics, we engineer ultra-narrow bandpass filters designed for applications demanding the highest spectral precision-fluorescence spectroscopy, laser selection, Raman spectroscopy, and advanced sensor systems. Our FWHM 1–2 nm filters provide exceptional wavelength control, high transmission, and robust out-of-band rejection, ensuring your optical instruments deliver best-in-class performance.

    Key Features Ultra-Narrow Bandwidth: FWHM 1–2 nm for precise isolation of target wavelengths-minimize noise, maximize signal integrity. High Transmission: Up to 90% peak transmission at centre wavelengths-optimize light throughput for sensitive detection. Broad Blocking: OD4 blocking (1:10,000 attenuation) across wide out-of-band ranges (see individual product specifications)-eliminate stray light and improve signal-to-noise ratios. Precision Centre Wavelength: ±0.2–0.5 nm accuracy-ideal for systems requiring repeatable, calibration-grade performance. Wide Spectral Coverage: Comprehensive portfolio from UV to NIR (375–1064 nm)-match your application with the optimal filter.
  • Fiber Collimators U-Benches with five degrees of freedom adjustment
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    U-Benches

    Each fiberport has five degrees of freedom adjustment U-Benches . Travel of X and Y direction is +/-0.7mm, Z >2mm, pitch and yaw +/- 4degree. It's used for applications requiring flexibility.
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  • Zoom Fiber Collimator with adjustable beam size for clear and homogeneous beam patterns
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    Zoom Fiber Collimators

    Zoom fiber collimators can change beam size continuously while keeping beam pattern homogeneous and clear. It works like zoom lenses of camera, instead of only adjusting separation distance between lenses and fiber as focus adjustable fiber collimators. Beam quality is much better than focus adjusting. It can be used in telemetry, illumination, lidar and so on.
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  • Focus Adjustable Fiber Collimators from Z-Optics for precise beam control.
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    Focus Adjustable Fiber Collimators

    Focus Adjustable Fiber Collimators can adjust beam diameter at specified distance by screwing a ring, which drives a lens stuck to it and changes the distance between this lens and fiber at last.
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  • Ultra Long Work Distance Fiber Collimator with over 2km range
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    Ultra Long Work Distance Fiber Collimators

    Ultra long work distance fiber collimators have over 2km work distance by expanding laser beam from fiber to dozens of millimeters, even over 100mm beam diameter. It's used in telemetry, illumination, lidar and so on, which project laser to remote distance. Multi-groups air-spaced lenses are used to optimize the power distribution. The beam spot is homogeneous and has clear board line.
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  • Long Work Distance Fiber Collimator Series 2
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    Long Work Distance Fiber Collimators – series 2

    Long work distance fiber collimator can provide near parallel beam up to 200 meters. Aberration is corrected to emit the near diffraction limit light with separated lenses. But effective focal length is still affected by wavelength. So, this collimator performs best at the specified wavelength.
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  • Long Work Distance Fiber Collimator for precise beam emission
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    Long Work Distance Fiber Collimators – series 1

    Long work distance fiber  collimator - series 1 can provide near parallel beam up to 200 meters. Aberration is corrected to emit the near diffraction limit light with separated lenses. But effective focal length is still affected by wavelength. So, this collimator performs best at the specified wavelength.
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  • Reflective Achromatic Fiber Collimator with 90° off-axis ellipsoidal mirror for laser-fiber coupling
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    Reflective Achromatic Fiber Collimators

    Reflective Achromatic Fiber Collimators uses a 90⁰ off-axis ellipsoidal mirror to couple free space laser beam into fiber or vice versa. Focal length of reflective mirror is irrelevant with wavelength. That makes it an idea solution to achromatic aberration. Al, Ag and Au is optional to be deposited as reflective film.
    • Aluminum averages greater than 90% reflectance from 200nm to the far infrared, except in the 750 – 900nm region where it averages around 85% reflectance.
    • Silver coatings can offer better performance in the visible and NIR from 450nm to 2μm.
    • For IR performance gold coatings offer high reflectivity of around 97% from 700nm up to 10μm.
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    Multimode Achromatic Fiber Collimators

    Multimode Achromatic Fiber Collimators is used for wide band application. Chromatic aberration is elaborately compensated with special design on materials, curves, thickness and separation of lenses. Please use right connectors and fibers listed in tables.
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    Single Mode Achromatic Fiber Collimators

    Single Mode Achromatic Fiber Collimators is used for wide band application. Chromatic aberration is elaborately compensated with special design on materials, curves, thickness and separation of lenses. Please use right connectors and fibers listed in tables.
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  • Aspheric Lens Fiberport Collimator for precise laser beam collimation
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    Aspheric Lens Fiberport Collimators

    Aspheric Lens Fiberport Collimators  can correct spherical aberration. Energy of the laser has a Gaussian distribution and beam is well collimated. But it can‘t correct chromatic aberration. Because focal length of aspherical lens is related to wavelength.
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  • Aspheric Lens Pigtailed Fiber Collimator for precise laser beam collimation
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    Aspherical Lens Pigtailed Fiber Collimators

    Aspherical lens can correct spherical aberration. Energy of the laser has a Gaussian distribution and beam is well collimated. But it can‘t correct chromatic aberration, because the focal length is related to wavelength of laser.
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