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In this paper, a new technique to attain a tunable parametric amplifier for application in the communication wavelength, based on near-zero ultraflat dispersion with PCF, has been explored. The chromatic dispersion profile and the corresponding zero dispersion wavelength (ZDW) of the optimized PCF can be well tuned to provide a wide gain spectrum in the communication wavelength just by changing the...
By launching a 80-GHz pulsed pump and 3-channel CW lights into 1-km highly-nonlinear fiber, 6-channel C+L band 80-GHz short pulse trains are generated based on four-wave mixing (FWM).
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