Large Beam Collimators
The Large Beam Collimators utilize an air-gap bonded lens structure to achieve superior collimation performance compared to conventional aspherical and achromatic lenses. The optimized low-aberration lens group design generates a beam profile closer to an ideal Gaussian distribution, significantly reducing divergence angles and minimizing wavefront errors. Designed for multimode (MM) fiber coupling, these collimators deliver high transmittance (>92%), excellent beam quality, and stable optical performance across visible and near-infrared wavelengths from 450 nm to 1550 nm.
Features
- Air-gap bonded lens design for superior collimation
- Low aberration optical group for near-ideal Gaussian beam
- Reduced divergence and minimized wavefront distortion
- Wide wavelength coverage: 450 nm – 1550 nm
- High transmittance (>92%)
- Large beam waist options up to ~19.4 mm
- Compatible with FC/PC and SMA905 connectors
- Multimode fiber support (62.5/125 to 400/440 µm)
Applications
- Fiber-coupled laser beam collimation
- Industrial laser processing systems
- Optical sensing and detection systems
- LiDAR and ranging systems
- Scientific research and laboratory optics
- OEM laser module integration
- Free-space optical communication
Specifications
| Parameter | Specification |
|---|---|
| Wavelength Options | 450 nm, 485 nm, 525 nm, 635 nm, 780 nm, 850 nm, 905 nm, 1064 nm, 1310 nm, 1550 nm |
| Wavelength Bandwidth | ±30 nm |
| Beam Waist | ~14.6 mm – 19.4 mm (depending on fiber type) |
| Beam Divergence (Full Angle) | ~2.1 mrad – 12.8 mrad (depending on fiber core) |
| Effective Focal Length (EFL) | ~33.5 mm – 37.1 mm |
| Numerical Aperture (NA) | 0.25 – 0.27 |
| Package Diameter | Φ24 mm |
| Fiber Types | 62.5/125 µm, 105/125 µm, 105/220 µm, 200/220 µm, 400/440 µm |
| Connector Options | FC/PC, SMA905 |
| Transmittance | >92% |
| Optical Design | Air-gap bonded lens group |
| Lens Type | Low-aberration collimation optics |
Download
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