铷吸收半导体激光稳频光波长标准研究

A Laser Diode Stabilized Optic Wacelength Standard Study on Absorption Line of Rb

介绍了用铷吸收光谱法对半导体激光器进行稳频,通过对包括半导体激光驱动源、稳频器、吸收室、光路等系统的优化设计,达到具有高信噪比微分误差信号,从而大大提高了半导体激光器稳频锁定灵敏度和长期稳定性。采用文中介绍的方法建立的光波长标准系统,其波长的测量重复性、稳定性可满足当前和将来很长一段时间光波长计校准的需要。

The frequency stabilization of the diode laser. The absorption spectroscopy is used to stabilized the frequency of the diode laser. By optimizing of this facility, such as, the diode laser drive, frequency stabilization, absorption cell and optical component etc, high signal-to-noise ratio of differential error signal of absorption spectroscopy is achieved. Thus the sensitivity of frequency locking and long- term frequency stability are improved. In this item, an optical wavelength standard facility has been estab- lished. The repetition and stabilization of this standard facility can fulfill the calibration needs of the optical wavelength meter at present and in the future.