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10. Amplified characteristics and supercontinuum generation of square-wave pulse fiber laser

Author

Wanzhuo Ma, Tianshu Wang, Qingsong Jia, Zhen Wang, Furen Wang, Chengbo Wang, Yinhao Bai, and Qingchao Su

Subjects
Materials science, business.industry, General Engineering, Single-mode optical fiber, Physics::Optics, 02 engineering and technology, Laser, 01 natural sciences, Atomic and Molecular Physics, and Optics, Supercontinuum, Pulse (physics), law.invention, 010309 optics, 020210 optoelectronics & photonics, Optics, Mode-locking, law, Fiber laser, 0103 physical sciences, Dispersion (optics), 0202 electrical engineering, electronic engineering, information engineering, Fiber, business
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.

Published
2018
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11. Amplified characteristics and supercontinuum generation of square-wave pulse fiber laser.

Author

Qingchao Su, Tianshu Wang, Wanzhuo Ma, Qingsong Jia, Yinhao Bai, Zhen Wang, Furen Wang, and Chengbo Wang

Subjects
OPTICAL fibers, FIBER optic cables, NONLINEAR optics
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. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

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