1.3/1.55-mu m full-duplex WDM optical transceiver modules for ATM-PON (PDS) systems using PLC-hybrid-integration and CMOS-IC technologies

This paper describes design techniques for suppressing crosstalk in an opti cal transceiver module using PLC-hybrid-integration technologies and for ac hieving burst-mode operation with high sensitivity and wide dynamic range u sing CMOS-IC technologies. An arrangement that reduces the electrical cross talk to less than -100 dB was designed using three-dimensional electromagne tic field analysis. The configurations of a newly developed instantaneous-r esponse CMOS LD driver circuit is also described and instantaneous-response CMOS receiver circuit techniques are reviewed. With these techniques, we h ave succeeded in building optical transceiver modules for ATM-PON systems u sing PLC-hybrid-integration and inexpensive standard CMOS-IC fabrication pr ocesses. Under full-duplex operation at 156 Mb/s, fabricated transceiver mo dules showed receiver sensitivity of better than -34 dBm and dynamic range of over 28 dB, which satisfy both the class-B and class-C specifications re commended by ITU-T (International Telecommunication Union-Telecommunication standardization sector) G983.1 for the optical transceiver module for an O NU (optical network unit).