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Mode hopping and carrier density fluctuations in semiconductor lasers

M. Jadan

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Abstract. We treat the effect of noise on the power and polarization characteristics of semiconductor lasers within the scope of our earlier model which considers polarization switching as a successive process of polarization transformation. We demonstrate that, under particular conditions, one can observe a stepwise transition between the states with the limiting values of polarization degree, though the latter remain statistical in their character. This process requires a certain time for its development, which cannot be regarded as a laser-system parameter.

Keywords: semiconductor lasers, polarization switching, fluctuations

PACS: 42.55.Px
UDC: 52-626+621.3.032
Ukr. J. Phys. Opt. 15 17-23
doi: 10.3116/16091833/15/1/17/2014
Received: 26.09.2013

Анотація. В роботі розглянуто вплив шуму на потужність і поляризаційні характеристики напівпровідникових лазерів, в межах нашої попередньої моделі, яка розглядає пере поляризацію, як послідовний процес трансформації поляризації. Показано, що, за певних умов, можна спостерігати поетапний перехід між станами з граничними значеннями ступеня поляризації, хоча вони мають статистичний характер. Цей процес вимагає певного часу для свого розвитку, який не може розглядатися як параметр лазерної системи. 
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