Abstract
This paper presents a theoretical and experimental study of performance
degradation caused by the interchannel crosstalk of a previously proposed
scheme for a super-dense wavelength-division multiplexing (WDM) transmitter
based on wavelength-swept light. In the theoretical study, we calculate the
relationship between the optical filter bandwidth, the wavelength sweep
range, and the power penalty based on an approximate modeling process. And
we employ the results to clarify the number of channels that can be achieved
without a serious power penalty for use as a practical criterion when the
wavelength sweep range is given. Furthermore, we describe experiments on
multichannel 100Mb/s and 1.0 Gb/s WDM signal
generation and selective detection using a fiber Bragg grating filter with a
3-dB bandwidth of 10.5 GHz. The results confirm that the theoretical and the
experimental results agree well when the spectral broadening induced by data
modulation is not very large.
© 2009 IEEE
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