科研之友
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摘要
Simulations are presented of a very broad and flat supercontinuum (SC) in both the normal and anomalous group velocity dispersion regimes of the same equiangular spiral photonic crystal fiber at low pumping powers. For a pump wavelength at 1557 nm and average pump power of 11.2mW, we obtained a bandwidth %26gt;3 mu m (970 nm-4100 nm) at 40 dB below the peak spectral power with fiber dispersion similar to 2.1 ps/km nm at 1557 nm. In the same fiber, at pump wavelength 1930 nm and average pump power of 12mW the SC bandwidth was more than two octaves (1300 nm-3700 nm) and dispersion was similar to 1.3 ps/km nm at 1930 nm. This demonstrates the potential use of the fiber for multi-wavelength pumping with commercially available sources at fairly low power.
- 出版日期2013-7-1
