FIBRE LASERS : Picosecond 1.3-μm bismuth fibre laser mode-locked by a nonlinear loop mirror. (28th December 2016)

• Record Type: Journal Article
• Authors: Khegai, A M; Afanas'ev, F V; Riumkin, K E; Firstov, S V; Khopin, V F; Myasnikov, D V; Mel'kumov, M A; Dianov, E M
• Is Part Of: Quantum electronics. Volume 46:Number 12(2016)
• Page Start: 1077
• Page End: 1081
• Publication Date: 2016-12-28
• Subjects: Quantum electronics -- Periodicals; 537.5
• DOI: 10.1070/QEL16243
• Languages: English
• ISSNs: 1063-7818

Abstract

Abstract: The influence of the concentration of bismuth active centres (BACs) in phosphosilicate fibres on their optical parameters, including gain coefficient and non-saturable losses, has been studied. A range of BAC concentrations optimal for designing ultrashort-pulse (USP) lasers was chosen based on the obtained results. The optimised fibre was used to fabricate an all-fibre 1.3-μm USP laser mode-locked by a nonlinear loop mirror, which emits 11.3-ps pulses with an energy of 1.65 nJ and a repetition rate of 3.6 MHz. A bismuth fibre amplifier made it possible to increase the pulse energy to 8.3 nJ. After compression in a diffraction grating compressor, the pulse duration decreased to 530 fs.