Antireflection-Coated Blue GaN Laser Diodes in an External Cavity and Doppler-Free Indium Absorption Spectroscopy
Antireflection-Coated Blue GaN Laser Diodes in an External Cavity and Doppler-Free Indium Absorption Spectroscopy Commercially available GaN-based laser diodes were antireflection coated in our laboratory and operated in an external cavity in a Littrow configuration. A total tuning range of typically 4 nm and an optical output power of up [...]