[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

[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