Title :
Low tuning current semiconductor coupled-cavity lasers incorporating Bragg reflectors
Author :
Brown, Donald H. ; Flynn, Michael B. ; O´Faolain, Liam ; Krauss, Thomas F.
Author_Institution :
Sch. of Phys. & Astron., Univ. of St. Andrews, UK
Abstract :
Edge-emitting coupled-cavity semiconductor lasers employing a deeply etched Bragg reflector at one facet have been realized. The sidemode suppression ratio (SMSR) and wavelength tuning were investigated as a function of low level current injection. A single-mode tuning range of 3 nm centered around 977 nm displaying an SMSR better than 20 dB was obtained for tuning currents in the milliampere range.
Keywords :
distributed Bragg reflector lasers; laser cavity resonators; laser modes; laser tuning; semiconductor lasers; 977 nm; Bragg reflectors; coupled-cavity lasers; deeply etched Bragg reflector; edge-emitting lasers; low tuning current lasers; semiconductor lasers; sidemode suppression ratio; single-mode tuning; wavelength tuning; Distributed Bragg reflectors; Etching; Laser tuning; Optical coupling; Optical device fabrication; Optical devices; Optical refraction; Optical tuning; Optical variables control; Semiconductor lasers; Integrated optics; laser tuning; semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856371
