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We demonstrate that record-high extinction-ratio of 50 dB is achievable in a 2×2 Si optical switch by making use of a variable splitter. The proposed switch will enable such high extinction-ratio even in volume production using standard CMOS fabrication facilities.
We propose to use signal phase for clock distribution in OTDM to enable stable clock recovery and channel identification using minimum bandwidth. A stable 43-GHz optical clock recovery has been successfully demonstrated from 215-Gb/s OTDM signal.
We report parametric tunable dispersion compensation in 43-Gbit/s RZ-DPSK transmission over 126-km DSF. Tunable optical dispersion compensation is successfully achieved with a low power penalty of less than 1 dB.
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