Frequency-stabilized seed laser system for dial applications around 0.94 μm

被引:2
|
作者
Galzerano, Gianluca
Laporta, Paolo
机构
[1] Politecn Milan, CNRS, Ist Foton & Nanotecnol, I-20133 Milan, Italy
[2] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy
关键词
frequency-stabilized laser; extended cavity diode laser; FM spectroscopy; IR water vapour absorption; dial instrument;
D O I
10.1016/j.optlaseng.2005.04.017
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Absolute frequency stabilization of an extended-cavity diode laser at 0.94 mu m is reported. The diode laser was frequency locked against rovibrational absorption lines of water vapour by using the frequency modulation spectroscopy technique. The stabilized oscillator shows a short-term frequency stability level of similar to 40 kHz for integration times of 1 s and a long-term frequency drift lower than 10 MHz for observation times longer than 10(3) s. The frequency-stabilized oscillator system is mounted on a compact breadboard (75 cm x 50 cm) and constitutes the seed laser system for the injection of a high-energy DIAL laser transmitter operating in the 0.94-mu m spectral region. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:677 / 686
页数:10
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