Title :
Low-threshold two-dimensional distributed Bragg reflector lasers
Author :
Nigami, T. ; Suemune, I. ; Kan, Y. ; Yamanishi, M.
Author_Institution :
Hiroshima University, Department of Physical Electronics, Faculty of Engineering, Higashihiroshima, Japan
Abstract :
A new type of two-dimensional distributed Bragg reflector laser (2D-DBR) has been proposed and demonstrated based on analysis of earlier lasers. Threshold currents are 1/9th of earlier values and differential quantum efficiency is up by 2.5 times, while keeping the highly collimated output beam characteristics (0.9° × 3.2°).
Keywords :
distributed Bragg reflector lasers; semiconductor junction lasers; collimated output beam characteristics; differential quantum efficiency; semiconductor laser; threshold current; two-dimensional distributed Bragg reflector lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860291
