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探讨了利用光栅实时测量激光波长的理论依据，并进行了误差分析；尝试并实现了利用光栅实时测量激光波长的方法，预见到光栅是实时测量宽频带、脉冲激光波长的有效元件。
The theoretical basis of real-time measurement of laser wavelength by grating is discussed, and the error analysis is carried out. The method of real-time measurement of laser wavelength by grating is tried and realized. It is forecasted that grating is an effective element for real-time measurement of broadband and pulsed laser wavelength.