Five-axis fiber optic coupler and accessories AFP5-F7A-A

The LBTEK achromatic lens five-axis fiber coupler/collimator with a focal length of 7.5 mm offers three coating options (A/B/C), covering wavelengths from 400-1700 nm. While the connector and fiber remain stationary, the built-in lens provides five degrees of freedom for alignment: linear alignment in the X and Y directions, pitch and yaw angular alignment, and simultaneous adjustment of the Z-axis using pitch and yaw. The achromatic lens has a travel range of ±0.7 mm in the X and Y directions, with a resolution of 317 µm per revolution. The Z-direction travel range is ±1.0 mm, with a resolution of 200 µm per revolution. Additionally, loosening the three flat-head screws on the front panel allows rotation of the connector for polarization-maintaining fiber alignment. After alignment, tighten the locking screws on the side of the housing to secure the X and Y positions. The lock ring on the Zθ adjuster can fix the pitch/yaw position. Five-axis fiber couplers with FC/PC interfaces and an effective focal length ≤7.5 mm can be used with both FC/PC and FC/APC connectors, as the combination of five-axis adjustment and short focal length makes off-axis output negligible. Compared to five-axis fiber collimators with aspheric lenses, those with achromatic lenses provide smaller focal length shifts (see the curve page for detailed comparisons). Once the focal length of an achromatic lens five-axis fiber collimator is adjusted, it can generally be used for all wavelengths within the specified band. However, compared to aspheric lenses, achromatic lenses exhibit greater spherical aberration.

• Focal Length: 7.5mm
• Connector Type: FC/PC (compatible with FC/PC & FC/APC)
• Coating Type: A-coating, B-coating, C-coating
• Applicable to single-mode fiber
• Achromatic lens included