摘要
本文实验研究了脉冲光信号的Ｃｓ原子４５５ｎｍ两级法拉第反常色散滤光器（ＦＡＤＯＦ）的一些重要特性。给出了在所选温度的带宽和透过率与磁场的关系。与单级ＦＡＤＯＦ相比其通带宽度明显变窄。
This paper experimentally studied some important properties of two order FADOF at Cs 455 nm line under Nd:YAG pulse laser condition.At a selected temperature the properties of both the bandwidth and the transmission related to the magnetic field have been obtained.In this study, the bandwidth of two order FADOF was increased linearly with the increment of the magnetic field from 200 to 700 Gauss and is obviously narrower than that of the two single order FADOFs.The transmission of two order FADOF was also linearly increased with the increment of the magnetic field in the same range and is lower than that of the single FADOF.Fortunately,at a slightly higher cell temperature,such as T =160 ℃,the transmission of two order FADOF can reach 40%.Furthermore,it can reach theoretically up to 80% because 90 % can be obtained in the case of single FADOF.The most important result in the study is that the out of bandwidth rejection,which is one of the three parameters,was improved from 10 -3 to 10 -5 .The structure of the two order FADOF is relatively simpler than that of the single order FADOF.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期268-270,共3页
Spectroscopy and Spectral Analysis
基金
国家"八五"攀登计划
国家开放实验室基金
