Title :
Nonlinear Effects in Widely Tunable ECSL With Sampled Fiber Grating
Author :
He, Xiaoying ; Yu, Yonglin ; Huang, Dexiu ; Jiang, Shan ; Liu, Wen ; Wang, D.N.
Author_Institution :
Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
A theoretical study of nonlinear effects in the external cavity semiconductor laser (ECSL) with sampled fiber grating is presented; such effects are responsible for asymmetric side-mode suppression ratio or power characteristics, and hysteresis phenomena. Impacts of material and geometrical parameters on nonlinear effects of such lasers were analyzed and discussed. Apodization and interleaved technologies were demonstrated to be helpful with expanding tuning range and suppressing nonlinear effects. Based on this, a new ECSL with interleaved sampled grating has been proposed.
Keywords :
diffraction gratings; laser beams; laser cavity resonators; laser tuning; nonlinear optics; optical fibres; semiconductor lasers; ECSL tuning; apodization technology; asymmetric side-mode suppression ratio; external cavity semiconductor laser; hysteresis phenomena; interleaved technology; nonlinear effects; sampled fiber grating; Nonlinear effects; sampled fiber grating (SFG); semiconductor laser; tunable lasers;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2008.2011374
