We report continuous operation of stimulated Raman scattering at 1.9μm wavelength based on hydrogen-filled anti-resonant hollow-core fibers(AR-HCFs)for the first time,to the best of our knowledge.Using a single-frequ...We report continuous operation of stimulated Raman scattering at 1.9μm wavelength based on hydrogen-filled anti-resonant hollow-core fibers(AR-HCFs)for the first time,to the best of our knowledge.Using a single-frequency fiber laser at 1μm as the pump source,a Stokes laser with a maximum power over 25 W is measured in a 47 m nested type of AR-HCF filled with hydrogen gas at 10 bar pressure,corresponding to a power conversion efficiency of 40%and a quantum efficiency of 72.5%.Backward stimulated Raman scattering is observed at the same time and a maximum power of over 5 W is measured at a higher pressure of 30 bar.This work demonstrates the potential of gas-filled AR-HCF in high-power nonlinear wavelength conversion in the mid-infrared spectral region.展开更多
基金supported by the Shanghai Sailing Program(No.23YF1454400)the STI 2030-Major Projects(No.2022ZD0212100)+3 种基金the Key Technology Research and Development Program of Shandong Province(No.2021CXGC010202)the Chinese Academy of Sciences(No.ZDBS-LY JSC020)the National Natural Science Foundation of China(Nos.61935002,62075200,and 62127815)the Strategic Priority Research Program of the Chinese Academy of Sciences(Nos.XDA0380301 and XDB0650000)。
文摘We report continuous operation of stimulated Raman scattering at 1.9μm wavelength based on hydrogen-filled anti-resonant hollow-core fibers(AR-HCFs)for the first time,to the best of our knowledge.Using a single-frequency fiber laser at 1μm as the pump source,a Stokes laser with a maximum power over 25 W is measured in a 47 m nested type of AR-HCF filled with hydrogen gas at 10 bar pressure,corresponding to a power conversion efficiency of 40%and a quantum efficiency of 72.5%.Backward stimulated Raman scattering is observed at the same time and a maximum power of over 5 W is measured at a higher pressure of 30 bar.This work demonstrates the potential of gas-filled AR-HCF in high-power nonlinear wavelength conversion in the mid-infrared spectral region.
