Hybrid Laser Module
Functional principle
Ridge waveguide (RW), broad area lasers (BA) or tapered lasers (TA) are mounted onto a microoptical bench. The vertical and lateral beam at the backside of the diode laser is collimated by a Fast Axis Collimatior (FAC) and a Slow Axis Collimator (SAC), respectively. Longitudinal mode filtering can be achieved by direct positioning of a Volume Bragg Grating into that collimated beam. The spectral selectivity of such gratings is typically 100 pm FWHM.
Dependent on application the front side output beam of these custom-made external cavity laser can be additionally collimated by a FAC and SAC, respectively.
- Principle of a Laser Module
Applications
- Sensor technology and analytics
- Display technology
- Solid-state laser pump source
Wavelength
- 635 nm
- 920 nm (coming soon)
- 976 nm
- 1060 nm (coming soon)
Technology and Mounting
- Layer structure by MOVPE technology
- Technology for chip design: BA laser, diode laser based on tapered structure, grating technology
- High accuracy assembling onto a micro-optical bench
Typical results
- Optical output power: > 5 W (NIR), > 50 mW (633 nm)
- Excellent beam quality: tapered lasers
- Longitudinal narrow band: spectral width about 100 pm FWHM
- Compact design
- [Poster, pdf]
- [Poster, pdf]