IEEE Photonics Journal (Jan 2015)

Ultranarrow-Linewidth Brillouin/Erbium Fiber Laser Based on 45-cm Erbium-Doped Fiber

  • Mo Chen,
  • Zhou Meng,
  • Yichi Zhang,
  • Jianfei Wang,
  • Wei Chen

DOI
https://doi.org/10.1109/JPHOT.2015.2399354
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 6

Abstract

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We demonstrate an ultranarrow-linewidth Brillouin/erbium fiber laser (BEFL), in which 45-cm commercialized erbium-doped fiber (EDF) acts as both the Brillouin and linear gain media. The Brillouin pump threshold of the BEFL is in submilliwatts. Its 980-nm pump threshold is only 15 mW. The BEFL presents an ultranarrow linewidth of 40 Hz. This single-frequency BEFL presents a number of applications in many high-coherence fields.

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