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| Code | 665769 | Type | 5-Axis Fiber Couplers and Accessories | |
| Effective Focal Length | 7.5mm | Connector Type | SMA | |
| AR Coating Range (e) | 1050 – 1700nm | Maximum Beam Waist Distance (ac) | 521mm | |
| Divergence Angle (Full Angle, a) | 1.365mrad | Input Fiber MFD (b) | 10.4μm | |
| Output Beam Waist Diameter (a) | 1.45mm | Clear Aperture of Lens (d) | 4.54mm | |
| Lens Numerical Aperture (NA) | 0.3 | Lens Material | D-ZLAF52LA | |
| Housing Material | Stainless Steel |
Focal Length: 7.5mm
Connector Type: FC/PC Interface (compatible with FC/PC & FC/APC connectors); SMA interface optional
Coating Options: A Coating, B Coating, C Coating
Applicable Fiber Type: Single Mode Fiber
The LBTEK 5-axis fiber coupler/collimator with a 7.5 mm aspheric lens offers A/B/C anti-reflection coating options, covering a wavelength range from 350 nm to 1700 nm. With the connector and fiber fixed, the internal lens supports five degrees of freedom for precision alignment: X and Y linear translation, pitch and yaw angular adjustment, and Z-axis adjustment through combined pitch/yaw movement.
The travel range for X and Y directions is ±0.7 mm, with a resolution of 317 µm per turn. The Z-axis travel range is ±1.0 mm, with a resolution of 200 µm per turn. For polarization-maintaining (PM) fiber alignment, the connector can be rotated by loosening the three flat-head screws on the front panel. After alignment, the XY position can be locked using side screws on the housing. The Zθ adjuster includes a locking ring to secure the pitch and yaw orientation.
For focal lengths ≤7.5 mm, the FC/PC version is compatible with both FC/PC and FC/APC connectors, as the combination of short focal length and five-axis alignment ensures negligible beam deviation even with angled connectors.
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