Ridge Waveguide Laser (RW Laser)
Scheme
In RW lasers the mode guiding is performed by the step of refractive index due to the deeply etched narrow ridge.
- Principle of a RW Laser
Applications
- Spectroscopy
- Pumping of fiber amplifier
- Measurement and control technology
- Pumping of up-conversion fiber laser
- Communication
- Data writing/reading
- Basis for DFB- and DBR-laser
Wavelength
630 nm to 1200 nm
Chip technology
- Layer structure by MOVPE technology
- Structurization of laser diodes using:
- Projection lithography
- Dry etching
- Evaporation and sputter technology for contacts
- Thinning
- Scribing, breaking, dicing
- Facet coating and passivation
Mounting
- AlN submounts
- Open heat sink (C-mount)
- SOT package
- TO3 package
Typical data
- Output power up to 2 W (nearly Gaussian shape beam profile) [Poster, pdf]