Open AccessTransverse modal control of wide-stripe high power semiconductor lasers using sampled grating
Author(s) -
Lianyan Li,
Yuechun Shi,
Yong Zhao,
Yunshan Zhang,
Wenxuan Wang,
Y. Wu,
Yinli Zhou,
Xing Zhang,
Xiangfei Chen
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.011171
Subject(s) - optics , grating , materials science , semiconductor laser theory , laser , optoelectronics , semiconductor , photolithography , physics
A transverse Bragg resonance (TBR) waveguide semiconductor laser with sampled grating is proposed and analyzed. The transverse phase shift in the middle of the grating is realized by shifting half of the sampling period, resulting in a good single transverse mode resonance. The characteristics such as the modal gain, the electric field distribution, the near and far field beam patterns are theoretically studied. Since the sampled grating is designed by combining a uniform basic grating with a micrometer scale sampling pattern, it can be easily fabricated by holographic exposure and conventional photolithography with low cost. Therefore, the proposed method would be beneficial to volume fabrication of wide-stripe high power semiconductor lasers.