Broadband parametric wavelength conversion at 1 μm with large mode area fibers.
Broadband parametric wavelength conversion at 1 μm with large mode area fibers.
复制标题
使用大模面积光纤进行 1 μm 宽带参量波长转换。
作者：
P. Steinvurzel;J. Demas;B. Tai;Y. Chen;Lu Yan;S. Ramachandran
Fiber-optic parametric wavelength conversion (PWC) below the zero-dispersion wavelength of silica is typically constrained by the requirement of a small, tightly confined mode with anomalous dispersion to achieve phase matching. This limits the ability to power scale PWC at arbitrary wavelengths. However, the constraint is lifted for higher-order modes. We demonstrate PWC in the 1 μm band via degenerate four-wave mixing pumped in a large effective area (>600 μm²) LP(0,7) mode of a double-clad fiber. We obtain up to 25% conversion in to the Stokes line with 0.5 ns pump pulses, corresponding to ~20 kW peak power at the converted wavelength.
