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Variable gate width, all-optical sampling using an electroabsorption modulator is proposed for a multi-bit rate, optical performance monitor. The discrepancy between waveform quality and bit error rate is decreased by adjusting gate width.
We developed an optical gating device using a bulk layer and high mesa ridge/BH hybrid structure with input power of 14.5 dBm. The shortest gating width of 3.9 ps was obtained in all-optical sampling experiments.
All-optical sampling is experimentally demonstrated using cross-absorption modulation in an electroabsorption modulator. A clear eye opening with 7-ps temporal resolution was obtained by optimizing the pump pulse.
All-optical switching and wide-range wavelength conversion was demonstrated at 160 Gbit/s using four-wave mixing in an SOA. The cross-correlation measurements using short reference pulse show the high-speed switching capability for wavelength routing in OTDM networks.
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