Acta Optica Sinica, Volume. 31, Issue 8, 814006(2011)
Tunable Erbium-Doped Fiber Laser Based on Multi-Mode Fiber Filter
A new-style, all-fiber, broad-band tunable erbium-doped fiber ring laser is proposed. The wavelength continuous tuning is realized by using a single-mode/multimode/single-mode fiber as a filter, in which the multimode fiber is wrapped around a polarization controller, and is spliced to a single-mode fiber at each ends. By carefully adjusting the polarization controllers in the cavity, the output central wavelength of tunable single-wavelength laser is tunable from 1542 to 1560 nm over a range of 18 nm, with a signal-to-noise ratio of 40 dB and the 3-dB linewidth of 0.096 nm. Furthermore, by appropriately rotating the polarization controllers and changing the pump power, wavelength continuously tunable dual- and triple-wavelength laser output is also experimentally demonstrated, and the wavelength selection and switching can be achieved by adjusting the polarization controllers in the cavity.
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Hao Yanping, Zhang Shumin, Wang Xinzhan, Meng Yichang, Li Huihui, Du Juan, Li Hongfei. Tunable Erbium-Doped Fiber Laser Based on Multi-Mode Fiber Filter[J]. Acta Optica Sinica, 2011, 31(8): 814006
Category: Lasers and Laser Optics
Received: Dec. 30, 2010
Accepted: --
Published Online: Jul. 29, 2011
The Author Email: Yanping Hao (haoyanping_2007@163.com)