Abstract
A new method of optical control of the output power of an ytterbium double-clad fiber laser is pro- posed. The method is based on the possibility of modulating the main channel gain coefficient inside an active element using the radiation of the competitive control channel. The advantage of this method consists in the fact that the main channel is modulated without inserting any controlling elements inside it. The static characteristics of the channel modulation are theoretically studied and the theoretical results are verified experimentally.
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