Modulation of phased-array semiconductor lasers at K-band frequencies
Modulation of phased-array semiconductor lasers at K-band frequencies
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K 频段相控阵半导体激光器的调制
DOI：
10.1109/3.89995
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发表时间：
1991
影响因子：
2.5
通讯作者：
H. Winful
中科院分区：
文献类型：
--
作者：
G. A. Wilson;R. Defreez;H. Winful
提出了在多发射极半导体激光器相控阵横向模的拍频调制实现锁相的可能性。介绍了双发射极阵列的速率方程模型，并利用该模型求出了阵列的光输出对注入电流的小正弦调制的响应。发现发射体的同相调制是无效的，而对发射体进行180度的异相调制将响应度扩展到远远超出弛豫振荡频率到大约与耦合发射体之间的光子交换速率相关联的频率。对几种情况下的速率方程进行了数值积分，以评估强调制(夹带)的稳定效果。>；
The possibility of phase locking the lateral modes of a multiple-emitter semiconductor-laser phased array by modulating at the beat frequency of the lateral modes is presented. A rate equation model of a twin-emitter array is introduced and used to find the response of the optical output of the array to small sinusoidal modulations of the injection current. In-phase modulation of the emitters is found to be ineffectual, while modulating the emitters 180 degrees out of phase extended the responsivity well beyond the relaxation oscillation frequency to approximately the frequency associated with the rate of photon exchange between the coupled emitters. The rate equations were numerically integrated for several cases of interest to evaluate the stabilizing effect of strong modulation (entrainment). >