Long-term frequency stability and linewidth properties of continuous-wave pump-resonant optical parametric oscillators
Long-term frequency stability and linewidth properties of continuous-wave pump-resonant optical parametric oscillators
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连续波泵浦谐振光参量振荡器的长期频率稳定性和线宽特性
DOI：
10.1007/s00340-004-1719-8
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
S. Schiller
中科院分区：
文献类型：
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作者：
F. Müller;F. Müller;G. Basum;Alexander Popp;D. Halmer;Peter Hering;M. Mürtz;F. Kühnemann;S. Schiller
本文对连续波泵浦和信号谐振两种不同结构的光学参量振荡器（泵浦谐振、单谐振OPO、PR-SRO）的频率稳定性和线宽进行了分析。这两种设计，共腔和双腔版本，利用频率稳定和窄线宽泵浦激光器和稳定，而不使用外部参考。两种设计的长期频率稳定性均优于±30 MHz，持续时间超过30分钟。对于共腔PR-SRO，一秒时间尺度上的频率抖动为56 kHz，对于双腔PR-SRO，约为10 MHz。用外部高精细度腔测量了短时间线宽，在20 μs内分别为（9±2）kHz和（6±1）kHz。据我们所知，这是迄今为止广泛连续波长可调谐全固态激光源的最低值。
We present a frequency stability and linewidth analysis of two different setups of continuous-wave pump and signal-resonant optical parametric oscillators (pump resonant, singly resonant OPO, PR-SRO). Both designs, a common-cavity and a dual-cavity version, utilize a frequency-stable and narrow-linewidth pump laser and are stabilized without using an external reference. A long-term frequency stability better than ±30 MHz is reached over more than 30 minutes for both designs. The frequency jitter on a one-second time-scale is 56 kHz for the common-cavity PR-SRO and about 10 MHz for the dual-cavity PR-SRO. The short-term linewidths were measured using an external high-finesse cavity and are (9±2)kHz and (6±1)kHz in 20 μs, respectively. To our knowledge, these are the lowest values demonstrated so far for a widely continuously wavelength-tunable all-solid-state laser source.