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Fibre-Format Photonic Source Based on Efficient Frequency Doubling of Continuous-Wave Erbium-Fibre Laser Amplifier
Authors:ZHANG Shuang-Gen  YAO Jiang-Hong  SHI Qing  LIU Yan-Ge  LI Yong-Nan  TU Cheng-Hou  GUO Wen-Gang  LU Fu-Yun
Affiliation:College of Physical Science, Nankai University, Tianjin 300071The Key Laboratory of Weak Light Nonlinear Photonics (Ministry of Education), Nankai University, Tianjin 300457Institute of Modern Optics, Nankai University, Tianjin 300071
Abstract:We demonstrate a compact photonic device based on efficient and wavelength-tunable doubling of an all fibre-format source. Quasi-phase-matched second-harmonic generation in periodically poled lithium niobate is used to generate 90.6mW at 775.9nm with a single-pass conversion efficiency of 14.7%. A tuning bandwidth of 2.1nm and a tuning temperature range of 150.6pm1.7°C can be achieved. The Er-doped seed fibre source is amplified by a clad-pumped Er3+/Yb3+-codoped fibre laser with a high output power up to 2.18W over a tunable wavelength range from 1535nm to 1570nm.
Keywords:42.55.Wd  42.65.Ky
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