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激光二极管的相干长度在高频调制的驱动电流下可以减小，在实验中对一个９８０ｎｍ的激光二极管进行了测量，表明相干长度已减小了近２０倍
The coherence length of a laser diode can be reduced at a high frequency modulated drive current. A 980 nm laser diode was measured experimentally, indicating that the coherence length has been reduced by nearly 20 times