Journal
LASER PHYSICS LETTERS
Volume 16, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1612-202X/aaf6a4
Keywords
fiber laser; Raman laser; linearly-polarized laser
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Funding
- French Agence Nationale de la Recherche (ANR) through the LabEx EMC3 project FASTMIR
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We developed linearly-polarized and diffraction-limited Raman fiber laser ( RFL) sources in the 1650-1680 nm spectral range with up to 6.2 W of output power. The pump laser near 1550 nm is a MOPA consisting of a laser diode seed source and two amplifier stages based on different erbium-doped fibers. Two RFL configurations using a PM single-mode fiber as Raman gain fiber are demonstrated and laser performances are numerically simulated. The first is a free-running laser configuration achieving 6.25 W of output power at 1655 nm and a conversion efficiency of 79%. In the second scheme, an all-fibered RFL using fiber Bragg gratings and emitting 5 W of output power at 1679 nm is demonstrated. In the latter case, performances limitations due to spectral broadening are analyzed.
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