双频塞曼He-Ne激光g1(τ)的时谱特性及其可能应用

详细信息

Time spectrum characteristics of g(1)(τ) of double frequency Zeemen He-Ne laser and its applications

摘要: 本文从塞曼激光器典型的频谱结构出发,导出了双频塞曼He-Ne激光时间相干度g(1)(τ)在纵模频率漂移效应作用下的时谱公式,分析了相应的时谱特性和频率调谐特性,并在此基础上探讨了g(1)(τ)时谱特性在某些激光参数测量中的可能应用。
- 双频塞曼激光 /
- 时间相干性 /
- g1(τ)时谱特性 /
- 稳频稳幅
Abstract: In terms of the typical structure in frequency spectrum of Zeemen He-Ne laser, a time-spectrum formula g1(τ) (the degree of first order temporal coherence) of the double frequency Zeemen laser is derived, considering of the longitudinal mode frequency drift. These research results show that:(1) because of the effect of line width, the time coherence g1(τ) has the variation of period τ0= 1/Δνolr,(2) the variation of time-spectrum of g1(τ) is relative to frequency drift of double frequency mode; (3) the time-spectrum characteristics of g1(τ) can be used in the measurements of the laser parameters or the frequency stabilization of the double frequency lasers.
- double frequency Zeemen laser /
- temporal coherence /
- time-spectrum property of g1(τ) /
- frequency and power stabilization