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A novel erbium/ytterbium co-doped distributed feedback fiber laser with single-polarization and unidirectional output

Li, X. H., Liu, X. M., Gong, Yongkang, Sun, H. B., Wang, L. R. and Lu, K. Q. 2010. A novel erbium/ytterbium co-doped distributed feedback fiber laser with single-polarization and unidirectional output. Laser Physics Letters 7 (1) , pp. 55-59. 10.1002/lapl.200910100

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Abstract

An asymmetrical π-phase-shift distributed feedback (DFB) fiber laser written in erbium/ytterbium co-doped fiber is fabricated. A new self-injection locking method is employed to make the proposed DFB fiber laser operate in single polarization states, which is composed of a polarization-dependent isolator and an optical circulator. The output character is investigated. 9.5 mW of the backward output power is obtained at the 159 mW pump power. The output power in one side is much higher than that in the other side, indicating that the DFB fiber laser operates in the unidirectional output. The delayed self-homodyne measurement is employed to detect the radio frequency spectrum of the DFB fiber laser. This novel single polarization DFB fiber laser has the potential application in the fiber optical sensor and optical communications.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Wiley-VCH Verlag: No OnlineOpen / IOP Publishing: Hybrid Open Access
ISSN: 1612-2011
Date of Acceptance: 26 August 2009
Last Modified: 15 Apr 2019 11:00
URI: http://orca.cf.ac.uk/id/eprint/119631

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