The technology of long‐distance power supply with high‐power laser (HPL) over single‐mode fiber (SMF) is of great significance in specific environment. The nonlinear effect of fiber and photovoltaic conversion (PC) efficiency are the key factors restricting the application of this technology. The wide linewidth laser and cascaded long period fiber grating (CLPFG) band rejection filter are used to suppress the stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) effects, respectively, integrating sphere like, scattering light guide cone and thermoelectric power generation improve PC efficiency. A HPL over SMF remote power supply system is developed and tested. The injected fiber power is 10 W, the wavelength of 1550 nm laser is transmitted through 103 km single‐mode fiber, and then 26 mW power is converted for the sensor. This is also the highest level of the open literature. It is expected to be applied to the power supply of high voltage transmission line remote monitoring information system in remote areas.

中文翻译：

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单模光纤大功率激光长距离供电系统的开发

单模光纤（SMF）上的高功率激光（HPL）长距离供电技术在特定环境中具有重要意义。光纤的非线性效应和光伏转换（PC）效率是限制该技术应用的关键因素。宽线宽激光和级联长周期光纤光栅（CLPFG）带阻滤波器分别用于抑制受激布里渊散射（SBS）和受激拉曼散射（SRS）的影响，将像球形的散射光导锥和热电发电相结合提高PC效率。开发并测试了HPL over SMF远程电源系统。注入的光纤功率为10 W，波长为1550 nm的激光通过103 km单模光纤传输，然后为传感器转换26 mW的功率。这也是公开文献的最高水平。有望应用于偏远地区的高压输电线路远程监控信息系统的电源。