Modeling of the spectrum in a random distributed feedback fiber laser within the power balance modes

Ilya D. Vatnik, Dmitry V. Churkin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The simplest model for a description of the random distributed feedback (RDFB) Raman fiber laser is a power balance model describing the evolution of the intensities of the waves over the fiber length. The model predicts well the power performances of the RDFB fiber laser including the generation threshold, the output power and pump and generation wave intensity distributions along the fiber. In the present work, we extend the power balance model and modify equations in such a way that they describe now frequency dependent spectral power density instead of integral over the spectrum intensities. We calculate the generation spectrum by using the depleted pump wave longitudinal distribution derived from the conventional power balance model. We found the spectral balance model to be sufficient to account for the spectral narrowing in the RDFB laser above the threshold of the generation.

Original languageEnglish
Title of host publicationLaser sources and applications II
EditorsJacob I. Mackenzie, Helena JelÍnková, Takunori Taira, Marwan Abdou Ahmed
PublisherSPIE
Number of pages7
ISBN (Print)978-1-6284-1083-9
DOIs
Publication statusPublished - 2014
EventLaser sources and applications II - Brussels, Belgium
Duration: 14 Apr 201417 Apr 2014

Publication series

NameSPIE proceedings
PublisherSPIE
Volume9135
ISSN (Print)0277-786X

Conference

ConferenceLaser sources and applications II
CountryBelgium
CityBrussels
Period14/04/1417/04/14

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Bibliographical note

Ilya D. Vatnik and Dmitry V. Churkin. "Modeling of the spectrum in a random distributed feedback fiber laser within the power balance modes ", Proc. SPIE 9135, Laser Sources and Applications II, 91351Z (May 1, 2014).

Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

DOI: http://dx.doi.org/10.1117/12.2052328

Keywords

  • balance model
  • Raman laser
  • random laser
  • Rayleigh backscattering

Cite this

Vatnik, I. D., & Churkin, D. V. (2014). Modeling of the spectrum in a random distributed feedback fiber laser within the power balance modes. In J. I. Mackenzie, H. JelÍnková, T. Taira, & M. Abdou Ahmed (Eds.), Laser sources and applications II [91351Z] (SPIE proceedings; Vol. 9135). SPIE. https://doi.org/10.1117/12.2052328