Title :
Index-guided segmented gain-section laser
Author :
Kim, S. ; Bryce, A.C. ; Marsh, J.H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
An index-guided laser with segmented gain-section was fabricated. A single-lobed Gaussian far field was obtained. Segmentation of the gain region by inserting multiple diffractive sections is thought to suppress higher order modes and filamentation.
Keywords :
energy gap; laser beams; laser modes; optical fabrication; photoluminescence; quantum well lasers; refractive index; waveguide lasers; SEM; double quantum well layer; filamentation; gain-guided oxide stripe laser; higher order modes; index-guided laser; lateral mode operation; multiple diffractive sections; photoluminescence spectra; pulsed mode light-current characteristic; quantum well intermixing; ridge waveguide laser; segmented gain-section; single transverse mode; single-lobed Gaussian far field; spatial mode filters; Diffraction; Gallium arsenide; Image segmentation; Laser modes; Optical waveguides; Power generation; Power lasers; Ring lasers; Scanning electron microscopy; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.968023
