Five-channel, 114 Gbit/s per channel, dual carrier, dual polarisation, coherent QPSK, monolithic InP receiver photonic integrated circuit

Terabit/s class InP photonic integrated circuits

“…In the experimental setup, pseudo-random bit sequences of length (2 15 -1) are used to modulate the transmitter whose output is a PM QPSK signal with a baud rate of 28 Gbaud. At the receiver, the incoming signal is scrambled.…”

“…The real-time DSP and FEC ASIC implementations today work at symbol rates up to 14.3 Gbaud [7]. These together with the ten-wavelength transmitter and receiver PICs have been used to implement a 570 Gbit s −1 (500 Gbit s −1 data throughput plus the FEC and other overheads) linecard which is the heart of the commercial super channel transport system available for deployment today [9,15,16].…”

Ultracompact 100 Gbps coherent receiver monolithically integrated on silicon

“…8,9) In recent years, there have been many reports on high-performance coherent receivers based on InP. [10][11][12][13] The reason why group III-V material systems are popular may lie in the fact that they have a direct bandgap. Consequently, ternary or quaternary compounds with good material properties can be easily acquired, and high-efficiency lasers can be achieved.…”