Wavelength- and time-selective channel dropping by sum frequency generation of a 10-GHz channel out of a 4 /spl times/ 10 GHz optical time-division-multiplexed signal has been demonstrated using two fully packaged Ti : PPLN wavelength converters. Less than -15 dB of channel dropping extinction ratio is observed with average (peak) coupled pump power of 100 mW (2 W).
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Lee et al. (2003) studied this question.
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