Abstract
A new and efficient method for analyzing a chirped-grating distributed-feedback (DFB) laser is presented. We show that coupled-wave equations can be solved by use of the power series method. The single-mode gain margin of a linearly chirped-grating DFB laser is calculated for different chirping factors and coupling constants. We found that clearly optimum chirping exists for which the single-mode gain margin is maximum. The gain margins were also calculated for different positions of the cavity center. The effect of facet reflectivities and their phases on the gain margin was investigated. We found that the gain margin is maximum and the spatial hole burning is minimum for the cavity center at the middle of the laser cavity.
© 1999 Optical Society of America
Full Article | PDF ArticleMore Like This
Muhammad Arif and Mohammad A. Karim
Appl. Opt. 39(6) 954-961 (2000)
Yuxin Ma, Hantian Ge, Zhenxing Sun, Hongji Wang, Yong Zhao, Yuechun Shi, Zhenzhen Xu, Rulei Xiao, Mi Li, Xin Wang, Xiaojun Zhu, and Xiangfei Chen
Appl. Opt. 62(10) 2661-2668 (2023)
Sang-Taek Kim and Boo-Gyoun Kim
J. Opt. Soc. Am. B 22(5) 1010-1015 (2005)