Mode and wavelength-switchable pulsed fiber laser with few-mode fiber grating


We propose and demonstrate a mode and wavelength-switchable pulsed fiber laser using two-mode fiber Bragg grating (TM-FBG) as both transverse mode converter and wavelength selector. The mode-locking mechanism is based on saturable absorption of semiconductor saturable absorption mirror (SESAM). Due to the use of low polarization-dependent mode-locking method, polarization disturbation between mode-locking and transverse-mode selection has been effectively eliminated, thus enabling flexible transverse-mode selection with simultaneous mode-locking operation. Moreover, through the optimized offset launching technique, this laser can operate at the wavelengths of the fundamental mode (LP01) and second-order mode (LP11), and thus export cylindrical vector beams (CVBs) and fundamental mode beams at the TM-FBG output port, respectively. This all-fiber laser is a simple, low-cost and flexible source for mode-division multiplexing system and other applications.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Electrical and Electronic Engineering
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences
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Uncontrolled Keywords: Cylindrical vector beams,dual-wavelength,mode-locked lasers,two-mode fiber Bragg grating,Electronic, Optical and Magnetic Materials,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
Publication ISSN: 1941-0174
Full Text Link:
Related URLs: https://ieeexpl ... cument/8732358/ (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-07-15
Published Online Date: 2019-06-06
Accepted Date: 2019-06-01
Authors: Cai, Yu
Wang, Zhiqiang
Wan, Hongdan
Zhang, Zuxing
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)



Version: Accepted Version

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