Yb-laser based on the LMA active fiber and multimode Bragg grating |
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| Authors: | A. S. Kurkov Ya. E. Sadovnikova E. M. Sholokhov I. O. Medvedkov |
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| Affiliation: | 1.General Physics Institute,Russian Academy of Sciences,Moscow,Russia;2.Moscow State University of Instrument Engineering and Computer Sciences,Moscow,Russia;3.Fiber Optics Research Center,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | ![]()
An ytterbium-fiber laser based on an active fiber with an increased core diameter and a multimode grating is created and studied. It is demonstrated that the effective reflection of the Bragg grating amounts to 96%. The laser line width is about 3 nm, which indicates the propagation of a superposition of modes in the multimode fiber. The repetitively pulsed regime of lasing, which can be related to the mode beating, is demonstrated |
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