Title :
Dynamics of SHB-induced mode instabilities in uniform DFB semiconductor lasers
Author :
Lowery, Arthur J.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
Abstract :
Time-domain simulations show strong 1 GHz pulsations and mode hopping of a uniform-DFB semiconductor laser operated at high output powers. These pulsations are due to asymmetric longitudinal spatial hole burning (SHB) of the carrier density by a high-frequency mode, leading to a pulse in a low-frequency mode. The pulse relaxes the carrier density to a symmetrical profile, which prefers the original mode.
Keywords :
distributed feedback lasers; laser modes; semiconductor lasers; SHB-induced mode instabilities; asymmetric longitudinal spatial hole burning; carrier density; high output powers; mode hopping; symmetrical profile; uniform DFB semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931233
