Eng R S, Mantz A W, Todd T R
Appl Opt. 1979 Apr 1;18(7):1088-91. doi: 10.1364/AO.18.001088.
The low-frequency noise characteristics of several stripe-geometry Pb-salt semiconductor diode lasers were investigated in the 4-11-microm spectral region. Excess noise is observed to vary as the ratio of I/I(t), where I is the injection current and I(t) is the threshold value at which lasing action begins. The magnitude of the diode laser excess noise has been measured to be 24 dB above shot noise at threshold.
在4-11微米光谱区域研究了几种条形结构铅盐半导体二极管激光器的低频噪声特性。观察到过量噪声随I/I(t)的比值变化，其中I是注入电流，I(t)是激光作用开始时的阈值。已测得二极管激光器在阈值时的过量噪声比散粒噪声高24分贝。
