Viénot J C, Orszag A, Pasteur J, Saron R, Bulabois J
Laboratoire d'Optique de la Faculté des Sciences de l'Université de Besançon, La Bouloie, France.
Appl Opt. 1966 Jun 1;5(6):1003-7. doi: 10.1364/AO.5.001003.
In solid-state laser emission, the spectral width mainly depends on two factors: frequency shift and broadening due to the short duration of the spikes. The latter being more important as the emitted wave train is shorter and the envelope slope steeper, it is of interest to consider an O-switched laser. The importance of the frequency shift compared to spectral width is determined for single pulses by measuring variations of the emitted wavelength as a function of time. Experiments are carried out by using a high-speed rotating mirror camera. The time resolution is about 3.2 nsec. Some results are reported, deduced from streak photographs of Fabry-Pérot rings. For a particular mode, a wavelength shift of the order of 3 x 10(-3) A in 50 nsec was detected; this shift is not a linear function of time.
在固态激光发射中，光谱宽度主要取决于两个因素：由于尖峰持续时间短而产生的频移和展宽。随着发射波列更短且包络斜率更陡，后者更为重要，因此考虑调Q激光器很有意义。通过测量发射波长随时间的变化来确定与光谱宽度相比频移的重要性，这是针对单个脉冲而言的。实验是使用高速旋转镜相机进行的。时间分辨率约为3.2纳秒。报告了一些从法布里 - 珀罗环的条纹照片推导得出的结果。对于特定模式，在50纳秒内检测到约3×10⁻³埃的波长偏移；这种偏移不是时间的线性函数。
