
Pigtailed GRIN Collimator GFCS-1550-N
GFCS-1550-NDesign Tools
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The GRIN collimator provided by LBTEK consists of a connector, optical fiber, and collimating head, which can effectively collimate the light transmitted in the optical fiber and output it into free space. It can also serve as a receiver to couple parallel beams from free space into the optical fiber for transmission. This type of small-spot pigtailed collimator is commonly used in miniaturized communication devices to output light from the optical fiber into free space through the collimator. After undergoing filtering, polarization, or other processing, the light is then coupled back into the optical fiber for transmission via another collimator. Therefore, it has a short working distance and is recommended for short-distance transmission collimation.
- FC/PC, FC/APC, No connector, Optional
- Design wavelength: 630 nm, 780 nm, 850 nm, 980 nm, 1064 nm, 1310 nm, 1550 nm
- Gradient index lens used
- Single collimation used

| Design Wavelength | 1550 nm |
| Connector Type | No joints |
| Working distance | 15±5 mm |
| Operating Temperature | 0 - 70 °C |
| Fiber Type | smf-28e, 900um loose tube |
| Fiber length | 1.0 m |
| Storage Temperature | -40 - 80 °C |
| Divergence angle | ≤ 0.25 mrad |
| Anti-reflection coating range | 1500-1600 nm |
| Lens Diameter | 0.5 mm |
| Insertion Loss | ≤ 0.4 dB |
| Return Loss | ≥ 55 dB |
| Optical Power | 1 W |
| Package Dimensions | Ø3.4×20 mm |
| Tube Material | Stainless steel housing |






