【摘要】 报道了一种实现半导体激光器频率锁定的新方法:通过交流磁场对法拉第反常色散光学滤波器（FADOF）的透射谱进行调制,将半导体激光器的频率锁定在FADOF的透射谱上。在B=1.76×10^-2T、T=120℃条件下,利用一阶导数稳频技术,测得1s和10s取样时间的频率稳定度分别为1.5×10^-10和5.8×10^-11。更多还原

【Abstract】 -The authors report here a novel method for the frequency-locking of a 780nm diode laser (LD) to the FADOF (Faraday anomalous dispersion optical filter) transmission spectrum of Rb-D2 line. Instead of modulating the injection current of LD, the FADOF transmission spectrum is modulated by using an AC magnetic field. In experiment carried out under conditions. T = 120℃, B = 1.76 ×10-2T, the measured frequency stability is 1.5x10-10 for Is or 5.8×1011 for 10s averaging time respectively. By changing the magnetic field from 1.31×10-2T to 2.51×10-2T, the frequency-locked LD may also be tuned with a frequency-tracking of about 2 GHz.更多还原