用饱和吸收光谱法对二极管激光器进行了稳频,使得激光 器的等效线宽小于1~MHz,并利用声光调制器使激光的频移量得到 控制,能满足激光冷却与囚禁原子对激光频率稳定性和频移量的要 求,实现了Rb原子的激光囚禁。
Frequency of diode laser is stabilized by using saturated absorption spectroscopy, the linewidth of laser frequency is less than 1 MHz, and the offset of laser frequency can be controlled by using acousto-optical modulator. It satisfied the requirement of laser cooling and trapping of atoms, and thus has been used to the realization of laser cooling and trapping of rubidium atoms.
参考文献
[1] | MacAdam K B, Steinbach A, Wieman C. A narrow-band tunable diode laser system with grating feedback, and a saturated absorption spectrometer for Cs and Rb. Am. J. Phys., 1992, 60(12): 109 8~1111 |
[2] | 王谨,柳晓军,李交美等. Rb原子的激光囚禁. 光学学报, 1999, 20(5): 将发表 |
[3] | Yariv A, Yeh P. Optical Waves in Crystals: Propagation and Control of Laser Radiation. New York: John Wiley & Sons, 1981. 329~333 |
[4] | Demtroder W. Laser Spectroscopy: Basic Concepts and Instrumentation. Berlin, Heideberg, New York: Spring-Verlag, 1981. 488~495 |
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