Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of <sup>87</sup>Rb

Laser frequency locking based on the normal and abnormal saturated absorption spectroscopy of ⁸⁷Rb

Wan Jian-Hong, Liu Chang, Wang Yan-Hui^†,

Result of the laser locking. We obtain the photodiode voltage for 22 days. The laser remains in the locking state when the floating range of the photodiode voltage is 100 mV–200 mV. The sampling time of each point is 10 s.