Title :
Narrow Linewidth of 633-nm DBR Ridge-Waveguide Lasers
Author :
Blume, Gunnar ; Schiemangk, M. ; Pohl, J. ; Feise, David ; Ressel, P. ; Sumpf, Bernd ; Wicht, Andreas ; Paschke, Katrin
Author_Institution :
Ferdinand-Braun-Inst., Leibniz Inst. fur Hochstfrequenztechnik, Berlin, Germany
Abstract :
Compact laser sources with long coherence lengths in the visible spectral region are sought for many applications. This letter presents distributed-Bragg-reflector (DBR) ridge-waveguide (RW) lasers with an emission wavelength at 633 nm and an optical output power >20 mW. The DBR-RW lasers exhibit a technical linewidth at full width at half maximum of ~1 MHz. The emission line can be tuned via current and temperature >200 GHz. At 14 mW, the lasers show a preliminary lifetime 4000 h.
Keywords :
distributed Bragg reflector lasers; light coherence; DBR ridge-waveguide lasers; compact laser sources; emission line; long coherence lengths; narrow linewidth; visible spectral region; wavelength 633 nm; Distributed Bragg reflectors; Laser beams; Laser modes; Laser tuning; Measurement by laser beam; Surface emitting lasers; 633 nm; DBR-RW laser; linewidth;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2243428
