Investigation of bistable switching in linear tapered nonlinear Bragg gratings
JIAN-FENG TIAN1,*
Affiliation
- Department of Physics, Taiyuan Normal University, Taiyuan 030031, China
Abstract
Based on the coupled mode theory, by using the time-domain transfer matrix method, the bistable performance and dynamic
switching characteristics of linear tapered nonlinear Bragg gratings (LT-NLBG) are analyzed numerically. We consider both
the positive and negative tapered case and compare their performance as a nonlinear switch. The results show that, With the
quasi-continuous wave taken into consideration, for the various tapered factors, the temporal characteristics exists with
significant difference, including output self-pulsation amplitude, time delay and pulse-width, etc.; As a short pulse switching
device, the positive tapered gratings display much less splitting, an indication that modulation instability is not playing a
significant role, and the transmitted pulse is much more intense than that in the negative tapered case..
Keywords
Bragg gratings, Linear tapered, Bistable switching.
Citation
JIAN-FENG TIAN, Investigation of bistable switching in linear tapered nonlinear Bragg gratings, Optoelectronics and Advanced Materials - Rapid Communications, 8, 5-6, May-June 2014, pp.418-422 (2014).
Submitted at: July 7, 2013
Accepted at: May 15, 2014