Fig. 1. (a) Fiber ring resonator and spectrum experiment device; (b) fiber tensile holder.(a) 光纤环形谐振腔及其光谱测量实验装置; (b)光纤拉伸支架

Fig. 2. Schematic of PDH stabilization experiment device.PDH锁定实验装置示意图

Fig. 3. Splitting ratio as a function of angle of knob of fiber splitter.可调谐分束器的分束比与旋钮旋转角度关系

Fig. 4. (a) Fiber ring resonator reflectance spectra with different coupling states; (b) minimum reflectance T as a function of κ. (a) 不同耦合态下的光纤环形谐振腔反射谱; (b) 最低反射率T随总衰减率κ的关系

Fig. 5. Locking results when modulation power of phase is 12 dBm (a) and –9 dBm(b).相位调制功率为12 dBm (a)和–9 dBm(b)的锁定结果

Fig. 6. (a) Frequency spectra analysis of resonator reflectance; (b) power ratio of resonator reflectance modulated at maximum intensity and without modulation as a function of phase modulation power.(a)腔反射信号的频谱分析; (b)腔反射最大调制强度与无调制时的比值随相位调制功率的变化