Brillouin fiber laser using As38Se62 suspended-core chalcogenide fiber

K. Hey Tow; Y. Léguillon; P. Besnard; L. Brilland; J. Trolès; P. Toupin; D. Méchin; D. Trégoat; M. Doisy

doi:10.1117/12.921821

25 April 2012 Brillouin fiber laser using As₃₈Se₆₂ suspended-core chalcogenide fiber

K. Hey Tow, Y. Léguillon, P. Besnard, L. Brilland, J. Trolès, P. Toupin, D. Méchin, D. Trégoat, M. Doisy

Proceedings Volume 8426, Microstructured and Specialty Optical Fibres; 842611 (2012) https://doi.org/10.1117/12.921821
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

In this paper, an all-fiber Brillouin laser ring cavity using a 3-m-long suspended-core chalcogenide As₃₈Se₆₂ fiber is reported for the first time to our knowledge. For a nonresonant ring cavity with no servo-locking, a laser threshold power of 37 mW and an efficiency of 26 % were obtained for a fiber having a core diameter of 5 μm. The linewidth of the Brillouin fiber laser and the pump laser were respectively measured to be below 4 kHz, the resolution of our autocorrelator, and 250 kHz, thus showing the linewidth-narrowing nature of the Brillouin laser. This result paves the way to compact Brillouin lasers with low threshold power and good spectral purity. A full experimental Brillouin characterization is also reported. We measured a Brillouin gain spectrum of 14.2 MHz, a Brillouin gain coefficient of 5.6x10^-9 m/W and a Brillouin frequency shift of 7.95 GHz in our fiber.

Citation Download Citation

K. Hey Tow, Y. Léguillon, P. Besnard, L. Brilland, J. Trolès, P. Toupin, D. Méchin, D. Trégoat, and M. Doisy "Brillouin fiber laser using As₃₈Se₆₂ suspended-core chalcogenide fiber", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 842611 (25 April 2012); https://doi.org/10.1117/12.921821

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