| 1 | Dual-Wavelength Holmium-Doped Fiber Laser Pumped by Thulium-Ytterbium Co-Doped Fiber Laser显示文摘We present an all-fiber dual-wavelength holmium-doped fiber laser operating in 2 μm region using a newly developed holmium-doped fiber(HDF) as a gain medium.The proposed fiber laser is constructed by using a hybrid gain medium,i.e.,a thulium-ytterbium co-doped fiber(TYDF) and an HDF in conjunction with a simple half-opened linear cavity,which is formed by a broadband mirror and an output coupler reflector.Without the HDF,the TYDF laser operates at wavelengths of 1991 and 1999 nm with a signal-to-noise ratio of more than 34 dB and the slope efficiency of 26.16%.With the HDF,dual-wavelength output lines are obtained at 2075 and 2083 nm with signal-to-noise ratios of more than 17 dB,3dB bandwidth of less than 0.2 nm and the power difference between the two peaks of less than 1 dB at the TYDF laser pump power of 320 mW. | A.A.Latiff A.Dhar S.W.Harun I.M.Babar S.Das M.C.Paul H.Ahmad | 2016 | Chinese Physics Letters2016，33，5： | 0 |
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