All-fiber single polarized Yb-doped fiber laser with a high extinction ratio |
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Authors: | Dong Xue |
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Institution: | Department of Electrical and Computer Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3 |
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Abstract: | We present an all-fiber design for a single polarization Yb-doped fiber laser with all-fiber connections spliced. Single polarization with a high extinction ratio was achieved by the design of a laser cavity consisting of a fiber Bragg grating inscribed on a single-polarization fiber as a high reflective mirror and a piece of end-cleaved single-polarization fiber as an output coupler. The fiber laser operates at 1063.25 nm with an output power of 1.7 W, an optical signal- to-noise ratio of 70 dB and a narrow bandwidth of 54 pm. The laser output has a polarization extinction ratio of 700:1 or 28 dB, and a very stable power output. |
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Keywords: | High-power fiber laser Polarization Fiber Bragg gratings |
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