Open AccessSmall signal gain characteristics of periodically arranged resonant amplifying media
Author(s) -
Fang Chen,
Jianhua Zeng,
Jianying Zhou
Publication year - 2007
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.56.4175
Subject(s) - high gain antenna , signal (programming language) , automatic gain control , exciton , physics , gain , optics , materials science , refractive index , optoelectronics , active laser medium , condensed matter physics , computer science , amplifier , laser , cmos , laser power scaling , programming language
The characteristics of small signal gain are studied in a one-dimensional periodically arranged amplifying media. It is proved that the small signal gain characteristics shows special features with the increase of gain material length. The variation in gain is determined by the mutual competition between the photonic band gap formed by the refractive index of amplifying media and gain reaction under the resonant Bragg condition. Furthermore, we investigated the gain on the parameters of excitons and resonant atoms.