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.
Ultra Long Work Distance Fiber Collimators
2KM WD
2KM Work Distance Fiber Collimators
| λ (nm) | Beam Size (mm) | Div. (mrad) | EFL (mm) | Transmission Distance (km) | Transmittance | Fiber Type | Connector |
| 525±20 | 110 | 0.6 | 250 | 2 | >90% | 60/125μm NA 0.22 | FC/PC FC/APC Sma905 |
| 525±20 | 110 | 0.8 | 250 | 2 | 105/125μm NA 0.22 | ||
| 525±20 | 48 | < 0.05 | 250 | 2 | 460HP | ||
| 905±20 | 110 | 0.55 | 250 | 2 | 60/125μm NA 0.22 | ||
| 905±20 | 110 | 0.72 | 250 | 2 | 105/125μm NA 0.22 | ||
| 905±20 | 55 | < 0.06 | 250 | 2 | 780HP | ||
| 1550±20 | 110 | 0.44 | 250 | 2 | 60/125μm NA 0.22 | ||
| 1550±20 | 110 | 0.61 | 250 | 2 | 105/125μm NA 0.22 | ||
| 1550±20 | 49 | < 0.06 | 250 | 2 | Smf-28e |
3KM WD
3KM Work Distance Fiber Collimators
| λ (nm) | Beam Size (mm) | Div. (mrad) | EFL (mm) | Transmission Distance (km) | Transmittance | Fiber Type | Connector |
| 525±20 | 140 | 0.49 | 320 | 3 | >90% | 60/125μm NA 0.22 | FC/PC FC/APC Sma905 |
| 525±20 | 140 | 0.69 | 320 | 3 | 105/125μm NA 0.22 | ||
| 525±20 | 61 | < 0.04 | 320 | 3 | 460HP | ||
| 905±20 | 140 | 0.4 | 320 | 3 | 60/125μm NA 0.22 | ||
| 905±20 | 140 | 0.58 | 320 | 3 | 105/125μm NA 0.22 | ||
| 905±20 | 70 | < 0.05 | 320 | 3 | 780HP | ||
| 1550±20 | 140 | 0.43 | 320 | 3 | 60/125μm NA 0.22 | ||
| 1550±20 | 140 | 0.58 | 320 | 3 | 105/125μm NA 0.22 | ||
| 1550±20 | 63 | < 0.05 | 320 | 3 | Smf-28e |
5KM WD
5KM Work Distance Fiber Collimators
| λ (nm) | Beam Size (mm) | Div. (mrad) | EFL (mm) | Transmission Distance (km) | Fiber Type | Connector |
| 525±20 | 175 | 0.32 | 400 | 5 | 60/125μm NA 0.22 | FC/PC FC/APC Sma905 |
| 525±20 | 175 | 0.43 | 400 | 5 | 105/125μm NA 0.22 | |
| 525±20 | 76 | < 0.025 | 400 | 5 | 460HP | |
| 905±20 | 175 | 0.31 | 400 | 5 | 60/125μm NA 0.22 | |
| 905±20 | 175 | 0.42 | 400 | 5 | 105/125μm NA 0.22 | |
| 905±20 | 92 | < 0.03 | 400 | 5 | 780HP | |
| 1550±20 | 175 | 0.32 | 400 | 5 | 60/125μm NA 0.22 | |
| 1550±20 | 175 | 0.43 | 400 | 5 | 105/125μm NA 0.22 | |
| 1550±20 | 78 | < 0.03 | 400 | 5 | Smf-28e |
