Abstract
We demonstrate a high-power, multi-wavelength, short pulse source at 10
Gb/s based on spectral slicing of supercontinuum (SC) generated in short
fibers. We show that short fiber SC can be used for dense wavelength division
multiplexing applications because of its > 7.9 dBm/nm power spectral
density, 140 nm spectral bandwidth, and ±0.5 dB spectral uniformity
over 40 nm. Pulse carving up to 60 nm away from the pump wavelength and CW
generation by longitudinal mode carving indicates that the coherence of the SC
is maintained. By using high nonlinearity fibers, the spectral bandwidth is
increased to 250 nm, which can accommodate >600 wavelength channels with 50
GHz channel spacing and >6 Tb/s aggregate data rate. We also calculate the
coherence degradation due to amplification of incoherent energy during the SC
generation. Theoretical results show that the SC generation in short fibers
has 13 dB higher signal-to-noise ratio (SNR) compared to the SC generated in
long fiber.
© 2000 IEEE
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