All-fiber DFB laser operating at 2.8 mu m

作者:Bernier Martin*; Michaud Belleau Vincent; Levasseur Simon; Fortin Vincent; Genest Jerome; Vallee Real
来源:Optics Letters, 2015, 40(1): 81-84.
DOI:10.1364/OL.40.000081

摘要

Single-frequency laser emission from a distributed feedback all-fiber laser operating in the vicinity of 3 mu m is demonstrated. The laser cavity was made of a 30 mm long pi-phase-shifted fiber Bragg grating inscribed in a heavily erbium-doped fluoride fiber using infrared femtosecond pulses and the dithering phase-mask technique. A maximum CW output power of 12 mW was obtained at 2794.4 nm by using a multimode pumping scheme. The narrow linewidth was characterized to be lower than 20 kHz using a heterodyne technique. This achievement represents a significant step toward the development of active frequency references operating in the mid-infrared.

  • 出版日期2015-1-1