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This paper explains a plan of research and development of high speed optical communication technology for observed data transmission from satellites/airplanes. The amounts of data acquired on observation satellites or airplanes have become larger with the rapid improvements of resolutions of sensors. In order to transmit the vast amounts of data, a communication system that combines free space optical...
We demonstrate 112Gb/s transmission using PM-QPSK format and FPGA-based real-time digital signal processing. By employing framed processing architecture for polarization demultiplexing and carrier phase estimation, stable operation of error free after FEC and wide frequency offset have been achieved.
We have developed compact 12-channel, on-board optical transmitters and receivers. The assembly size was 9 mm ?? 14 mm. Error-free transmission up to 20 Gb/s/ch was achieved, which will enable us to construct a high density optical interconnect.
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