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| Coad | 666144 | Type | Air-Spaced Doublet Collimator | |
| Wavelength(nm) | 850 | Focal Length(mm) | 36.20 | |
| Output Spot Diameter (mm) | 7.80 | Divergence Angle (°) | 0.01 | |
| NAlens | 0.25 | Material | N-BK7 | |
| Deflection Angle | ≤0.025° | Coating Specifications | Ravg＜0.5%@650nm-1050nm | |
| Wavelength Range | 650 - 1050nm | Housing Material | Non-magnetic Stainless Steel | |
| Shell Diameter | 24.0mm | Shell Length | 42.0mma | |
| Thread Specification | - | Connector Type | SMA |
The LBTEK air gap dual-lens collimator, pre-aligned, is designed to collimate laser light emitted from optical fibers, providing diffraction-limited performance at the operating wavelength, with excellent chromatic and spherical aberration correction. The collimator has a compact overall structure and features an anti-reflection coating that significantly reduces surface reflections. Each collimator is factory-aligned for its specific operating wavelength, with the lens positioned at a focal length from the tip of the fiber inserted into the collimator. Additionally, the FC/APC version features a beveled connector, directing the beam emitted from the fiber into the collimator along the perpendicular focal plane.
LBTEK air gap dual-lens collimators are available in multiple wavelengths from 405 nm to 1550 nm. They offer three fiber connector versions: FC/PC, FC/APC, and SMA. Customization services are available, including adjustments for different wavelengths, connector types, housing sizes, and output beam diameters. For specific customization requirements, please contact us.
The LBTEK air gap dual-lens collimator has no moving parts and is compact, unaffected by misalignment, simplifying the coupling of free-space lasers to optical fibers. The FC/PC version of the air gap dual-lens collimator is currently available in ten design wavelengths: 405 nm, 450 nm, 520 nm, 635 nm, 780 nm, 850 nm, 980 nm, 1064 nm, 1310 nm, and 1550 nm. It is coated with an anti-reflection coating to reduce the reflectivity. For detailed specifications, please refer to the parameter table.
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