Design of chirped-coupling sidewall Bragg gratings for narrow linewidth distributed feedback lasers

被引：17

作者：

Di Gaetano, Eugenio ^{[1
]}

Sorel, Marc ^{[1
]}

机构：

[1] Univ Glasgow, Sch Engn, Glasgow, Lanark, Scotland

来源：

OPTICS LETTERS | 2019年 / 44卷 / 07期

关键词：

MODE-OPERATION; DFB LASERS;

D O I：

10.1364/OL.44.001642

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A chirped-coupling sidewall Bragg grating is proposed to mitigate the nonlinear effects that deteriorate the linewidth in DFB lasers operating at a high power and current regime. This novel grating geometry is analyzed and simulated to extract the optimal design parameters in terms of intra-cavity field distribution. Compared to lasers with uniform Bragg gratings, devices fabricated with a chirped-coupling grating are shown to operate in stable single mode operation over a wider current and power range and exhibit linewidth as narrow as 100 kHz. (C) 2019 Optical Society of America

引用

页码：1642 / 1645

页数：4

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