Sub-watt threshold, kilohertz-linewidth Raman distributed-feedback fiber laser

Optics Letters
Jindan ShiMorten Ibsen

Abstract

We report a low-threshold, narrow linewidth Raman distributed-feedback (R-DFB) fiber laser at 1109.54 nm based on a 30 cm long center π phase-shifted Bragg grating written directly in a commercially available germano-silica (Ge/Si) fiber. The R-DFB was pumped by a continuous-wave (CW) linearly polarized fiber source at 1064 nm, and the threshold power, full width at half-maximum (FWHM) linewidth and slope efficiency with respect to the incident pump power are measured to be 440 mW, <2.5  kHz (measured with a 29.75 km fiber delay line) and 13.5%, respectively. An rf spectrum analyzer confirms that the R-DFB fiber laser exhibits single-frequency performance.

References

Mar 24, 2004·Optics Letters·Chisato FukaiIzumi Sankawa
Aug 3, 2011·Optics Letters·Paul S WestbrookJerome Porque
Mar 16, 2012·Optics Express·Jindan ShiMorten Ibsen

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Citations

May 3, 2014·Optics Letters·Mathieu Gagné, Raman Kashyap
Oct 17, 2014·Optics Express·Jindan ShiMorten Ibsen
Jul 12, 2013·Optics Express·Herbert G WinfulBenjamin J Eggleton
Sep 29, 2017·Optics Letters·Sébastien LorangerRaman Kashyap
Jun 6, 2013·Optics Express·Aiqin ZhangBai-ou Guan
Mar 19, 2013·Optics Letters·Jindan ShiMorten Ibsen
Mar 1, 2020·Micromachines·Luigi Sirleto, Maria Antonietta Ferrara

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