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A compact 128 Gbit/s DP-QPSK modulator module including driver ICs and polarization multiplexing micro-optics is demonstrated. A dissipation power of only 3.2 W was achieved with a low differential driver output voltage of 2.5 Vpp.
We demonstrate highly stable field transmission of 160-Gb/s signal utilizing adaptive PMD compensator, which employing variable DGD generator with ultra high time-resolution of 0.053 fs.
An all-optical modulation-format convertor with regenerative function based on fiber nonlinearity is proposed and demonstrated. The convertor was formed utilizing polarization- rotation-type nonlinear optical fiber loop mirror and could operate at both on-off keying (OOK) to OOK and OOK to phase-shift keying (PSK) format conversions only by simply rotating the optical axis of the intra lambda/2 waveplate,...
Single channel 160 Gbit/s OTDM transmission over 300 km of SMF, using 40 GHz external-cavity mode-locked LD and 80 Gbit/s OTDM module, and the feasibility of optical-phase control are described
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