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Abstract <p>An erbium laser is presented in a configuration of a half-open cavity consisting of a narrow-linewidth fiber Bragg grating and artificial Rayleigh reflector providing random distributed feedback. For additional spectral filtering, a 10-m twin-core fiber wound onto a spool with a diameter of 9 cm is used. A single-frequency generation regime with the maximum output power of 4.4 mW is achieved; the generation linewidth is 2 kHz.</p>

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Application of a Twin-Core Fiber with Mode Coupling between the Cores for the Narrow-Linewidth Erbium Laser Implementation

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • K. V. Proskurina,
  • M. I. Skvortsov,
  • E. V. Golikov,
  • S. R. Abdullina,
  • A. V. Dostovalov,
  • O. N. Egorova,
  • S. L. Semenov,
  • S. A. Babin

摘要

Abstract

An erbium laser is presented in a configuration of a half-open cavity consisting of a narrow-linewidth fiber Bragg grating and artificial Rayleigh reflector providing random distributed feedback. For additional spectral filtering, a 10-m twin-core fiber wound onto a spool with a diameter of 9 cm is used. A single-frequency generation regime with the maximum output power of 4.4 mW is achieved; the generation linewidth is 2 kHz.