Scholarlink

Abstract <p>The possibility of amplifying a single-frequency signal at a wavelength of 1367 nm in bismuth-doped optical fibers with single-mode (laser using the nonlinear optical effect of stimulated Raman scattering, Raman laser) and multi-mode (laser diodes) pumping has been investigated. The use of a Raman fiber laser with a radiation wavelength of 1205 nm and a power of ~2 W, and bidirectional pumping injected into the core of a single-mode bismuth-doped optical fiber increased the signal power from 11 to 342 mW (gain of ~15 dB). An output signal power of 155 mW (gain of ~11.5 dB) was achieved using multimode laser diodes with a wavelength of 793 nm injected into the cladding of an active single-mode optical fiber. In both cases, the spectrum of the single-frequency signal was not distorted after amplification when measured using a spectrum analyzer with a hardware function of 20&#xa0;pm, while the relative intensity noise (RIN) of the amplifiers did not exceed –140 dB/Hz.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Amplification of Single-Frequency Signals in Bismuth-Doped Optical Fibers with Single-Mode and Multimode Pumping

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • E. A. Evmenova,
  • A. G. Kuznetsov,
  • D. S. Kharenko,
  • A. M. Khegai,
  • K. E. Riumkin,
  • A. A. Umnikov,
  • F. V. Afanasiev,
  • S. V. Firstov,
  • S. A. Babin

摘要

Abstract

The possibility of amplifying a single-frequency signal at a wavelength of 1367 nm in bismuth-doped optical fibers with single-mode (laser using the nonlinear optical effect of stimulated Raman scattering, Raman laser) and multi-mode (laser diodes) pumping has been investigated. The use of a Raman fiber laser with a radiation wavelength of 1205 nm and a power of ~2 W, and bidirectional pumping injected into the core of a single-mode bismuth-doped optical fiber increased the signal power from 11 to 342 mW (gain of ~15 dB). An output signal power of 155 mW (gain of ~11.5 dB) was achieved using multimode laser diodes with a wavelength of 793 nm injected into the cladding of an active single-mode optical fiber. In both cases, the spectrum of the single-frequency signal was not distorted after amplification when measured using a spectrum analyzer with a hardware function of 20 pm, while the relative intensity noise (RIN) of the amplifiers did not exceed –140 dB/Hz.