Open AccessDynamics of ultimate spectral narrowing in a semiconductor fiber-grating laser with an intra-cavity saturable absorber
Author(s) -
Irina A. Kostko,
Raman Kashyap
Publication year - 2006
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.14.002706
Subject(s) - saturable absorption , materials science , optics , fiber bragg grating , grating , laser , fiber laser , semiconductor laser theory , mode locking , optical cavity , optoelectronics , semiconductor , physics
The ultimate spectrum-narrowing and side-mode suppression due to the presence of a saturable absorber in an external cavity of a fiber Bragg grating semiconductor laser is numerically simulated. The proposed algorithm describes an effect of absorption bleaching in a saturable absorber using earlier measurements and shows the evolution of a dynamic grating in the laser cavity. The simulations confirm for the first time an empirical theory of spectral line narrowing in a laser with an intra-cavity saturable absorber.