Error-Free Loopback of a Compact 25 Gb/s × 4 ch WDM Transceiver Assembly Incorporating Silicon (De)Multiplexers with Automated Phase-Error Correction

Polarization Diversified 16λ Demultiplexer Based on Silicon Wire Delayed Interferometers and Arrayed Waveguide Gratings

“…However, since the phase controllability for achieving spectral response can be given by ArF-immersion lithography process, we could maintain spectral quality across the whole SOI wafer. As a matter of course, thermal heater controls for compensating for the inherent phase errors occurring in fabrication process will be an alternative efficient way to further improve the spectral uniformity and production yield [28], [29].…”

Recent Progress in the Development of Large-Capacity Integrated Silicon Photonics Transceivers

“…We have developed next-generation silicon photonics WDM transceivers consisting of several active devices, including optical sources, modulators and photodetectors. In addition, passive devices, such as optical multiplexers/demultiplexers (MUX/DeMUX) and grating couplers as the optical interface with SMFs in transmitters and receivers, have been reported [17]- [24].…”

“…Recently, 100 Gbps error-free WDM signal transmission was experimentally demonstrated in the integrated transceiver assembly in which 25Gbps × 4λ modulators and photodetector arrays, tunable MUXs/DeMUXs and grating coupler arrays are monolithically integrated in a silicon photonics platform [24]. Figure 11 shows the top-view of this fabricated WDM transceiver assembly.…”