27 February 2018 Amplified characteristics and supercontinuum generation of square-wave pulse fiber laser
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Abstract
We experimentally studied a passive mode-locked square-wave fiber laser with net-normal dispersion by using a nonlinear amplifying loop mirror. The output pulse width of the square-wave pulse (SWP) can be extended with the increasing of the pump power as well as single pulse energy. The SWP can be amplified without shape distortion when the mode-locked laser is injected into an erbium-ytterbium codoped fiber amplifier. Then, by inputting the amplified SWPs into a single mode fiber (SMF), a supercontinuum (SC) can be observed with the spectral range of about 1550 to 1850 nm. Broader and flatter SC with the 20-dB spectral range of about 1550 to 1950 nm can also be generated using a segment of dispersion-shifted fiber instead of SMF.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE)
Qingchao Su, Qingchao Su, Tianshu Wang, Tianshu Wang, Wanzhuo Ma, Wanzhuo Ma, Qingsong Jia, Qingsong Jia, Yinhao Bai, Yinhao Bai, Zhen Wang, Zhen Wang, Furen Wang, Furen Wang, Chengbo Wang, Chengbo Wang, } "Amplified characteristics and supercontinuum generation of square-wave pulse fiber laser," Optical Engineering 57(2), 026118 (27 February 2018). https://doi.org/10.1117/1.OE.57.2.026118 . Submission: Received: 7 September 2017; Accepted: 24 January 2018
Received: 7 September 2017; Accepted: 24 January 2018; Published: 27 February 2018
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