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首页> 外文期刊>Applied optics >Active and passive frequency stabilization for a Q-switched Z-fold radio-frequency-excited waveguide CO_(2) laser with two channels
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Active and passive frequency stabilization for a Q-switched Z-fold radio-frequency-excited waveguide CO_(2) laser with two channels

机译：具有两个通道的Q开关Z折射频激励波导CO_（2）激光器的主动和被动频率稳定

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摘要

We report on passive offset frequency stability in free-running applications and active offset frequency stability achieved by use of a frequency-locking technique for a Q-switched Z-fold rf-excited waveguide CO_(2) laser with two channels. The laser structure of common electrodes and two channels has the advantage of compensating for the frequency variation caused by variations in temperature, cavity length, gas refractive index, and mechanical vibrations, so its offset frequency stability is higher than that of two separate lasers. In the experiments, the offset frequency shift was less than 6 MHz for 3 min in free-running mode. The technique of active offset frequency locking by counting was also introduced. The beat frequency shifting value was smaller than +-0.5 MHz in the long term.
机译：我们报告了在自由运行的应用中的无源偏移频率稳定性和通过对两个通道的Q开关Z折射频激励波导CO_（2）激光器使用锁频技术实现的有源偏移频率稳定性。公共电极和两个通道的激光器结构具有补偿温度，腔长，气体折射率和机械振动变化引起的频率变化的优势，因此其偏移频率稳定性高于两个单独的激光器。在实验中，自由运行模式下3分钟的偏移频移小于6 MHz。还介绍了通过计数实现主动偏置频率锁定的技术。从长远来看，拍频偏移值小于+ -0.5 MHz。

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