Switchable dual-wavelength Q-switched and mode-locked fiber lasers using a large-angle tilted fiber grating


We proposed and demonstrated pulsed fiber lasers Q-switched and mode-locked by using a large-angle tilted fiber grating, for the first time to our best knowledge. Owing to the unique polarization properties of the large-angle tilted fiber grating (LA-TFG), i.e. polarization-dependent loss and polarization-mode splitting, switchable dual-wavelength Q-switched and mode-locked pulses have been achieved with short and long cavities, respectively. For the mode-locking case, the laser was under the operation of nanosecond rectangular pulses, due to the peak-power clamping effect. With the increasing pump power, the durations of both single-and dual-wavelength rectangular pulses increase. It was also found that each filtered wavelength of the dual-wavelength rectangular pulse corresponds to an individual nanosecond rectangular pulse by employing a tunable bandpass filter.

Publication DOI: https://doi.org/10.1364/OE.23.001353
Divisions: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied Sciences > Aston Institute of Photonics Technology
Uncontrolled Keywords: Atomic and Molecular Physics, and Optics
Full Text Link: http://www.opti ... ri=oe-23-2-1353
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2015-01-20
Accepted Date: 2014-12-22
Submitted Date: 2014-11-05
Authors: Zhang, Zuxing
Mou, Chengbo ( 0000-0001-6107-3439)
Yan, Zhijun
Wang, Yongjin
Zhou, Kaiming ( 0000-0002-6011-1912)
Zhang, Lin ( 0000-0002-1691-5577)

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