Novel Raman Fiber Lasers Emitting in the U-Band With Combined Volume Bragg Gratings

Weichao Yao,Jun Liu,Nanyi Chen,Jianing Zhang,Yongguang Zhao,Deyuan Shen

Photonics Journal, IEEE （2014）

引用 11|浏览5

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摘要

Narrow linewidth and widely tunable high-power Raman fiber lasers emitting in the U-band wavelength were demonstrated based on combinations of volume Bragg gratings with different center wavelengths. The narrowed linewidth was 65 pm at a center wavelength of 1657.86 nm with a maximum output power of 8.3 W, corresponding to a slope efficiency of 55.6%. For the tunable Raman fiber laser, continuously tunable dual-wavelength emission was obtained in a wide band (1621.3-1683.5 nm) with a wavelength difference over 60 nm (0.7-62.2 nm). The maximum output power was 11 W, corresponding to a slope efficiency of 76.6%.

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关键词

bragg gratings,raman lasers,fibre lasers,laser tuning,spectral line narrowing,raman fiber lasers,u-band wavelength,dual-wavelength emission,efficiency 55.6 percent,efficiency 76.6 percent,linewidth narrowing,maximum output power,power 11 w,power 8.3 w,slope efficiency,volume bragg gratings,wavelength 1621.3 nm to 1683.5 nm,wavelength 1657.86 nm,raman fiber laser,dual-wavelength,narrow linewidth,power generation,fiber lasers

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