A type of a random laser with a feedback organized by a number of randomly distributed fiber Bragg gratings (FBG) can demonstrate single-mode, or low threshold operation. Nevertheless, the spectrum of such lasers can be unstable. Here we study temporal variations of the spectra of random fiber laser with a set of Bragg gratings and show that they depend on the level of surrounding noise.
E. I. Chaikina, I. D. Vatnik, and D. V. Churkin, "Study of spectral variations in generation of random fiber laser based on set of fiber Bragg gratings," Proc. SPIE 10683, Fiber Lasers and Glass Photonics: Materials through Applications, 106830N (Presented at SPIE Photonics Europe: April 23, 2018; Published: 17 May 2018); https://doi.org/10.1117/12.2305911.
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