Open AccessA novel method of chirp elimination using reconstruction equivalent chirp superstructured fiber Bragg grating
Author(s) -
Jilin Zheng,
Rong Wang,
Tao Fang,
Lin Lü,
Tao Pu,
Xiangfei Chen
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.7017
Subject(s) - chirp , fiber bragg grating , optics , pulse compression , materials science , bandwidth (computing) , ultrashort pulse , physics , laser , optoelectronics , computer science , telecommunications , radar
A novel chirp elimination and pulse compression method is firstly proposed using reconstruction equivalent chirp superstructured fiber Bragg gratingREC-SSFBG. Based on the feasibility of REC technology for any physical realizable target response this novel chirp elimination method is suited for any model of chirped pulse. The simulation results show that the time bandwidth product decrease from 225 265 and 250 to 0458 0636 and 073 for linearly chirped Gauss chirped and Lorentz chirped pulses respectively. The original pulsewidth is 20 ps and the chirp coefficients is -5 for all the three cases. Further experiment is performed with a fabricated REC-SSFBG to compress a chirped pulse generated from commercial software with model of gain-switched distributed feedback laser diode. The pulsewidth decreases from 25 ps to 5 ps which agrees well with the simulation.