Phase modulation of propagation effect with Doppler broadening  

作　　者：乔红霞 杨艳玲 谭霞 仝殿民 樊锡君 

机构地区：[1]College of Physics and Electronics, Shandong Normal University [2]School of Physics and Microelectronics, Shandong University

出　　处：《Chinese Physics B》2008年第10期3734-3738,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10675076);the Natural Science Foundation of Shandong Province, China (Grant No Y2006A21)

摘　　要：This paper studies the propagation effect in a closed lambda-type three-level atomic system with Doppler broadening. It is shown that, Doppler broadening due to atomic motion and propagation effect associated with driving field depletion along the active medium decreases obviously the gain and output of the lasing without inversion （LWI）; the relative phase between the probe and driving fields has a remarkable modulation role to the propagation effect on LWI when Doppler broadening presents; by choosing suitable value of the relative phase, we can get the largest gain and output of LWI.This paper studies the propagation effect in a closed lambda-type three-level atomic system with Doppler broadening. It is shown that, Doppler broadening due to atomic motion and propagation effect associated with driving field depletion along the active medium decreases obviously the gain and output of the lasing without inversion （LWI）; the relative phase between the probe and driving fields has a remarkable modulation role to the propagation effect on LWI when Doppler broadening presents; by choosing suitable value of the relative phase, we can get the largest gain and output of LWI.

关 键 词：closed system Doppler broadening propagation effect lasing without inversion 

分 类 号：O431.2[机械工程—光学工程] O562[理学—光学]