1.3/1.55-μm Full-Duplex WDM Optical Transceiver Modules for ATM-PON (PDS) Systems Using PLC-Hybrid-Integration and CMOS-IC Technologies

摘要

This paper describes design techniques for sup- pressing crosstalk in an optical transceiver module using PLC- hybrid-integration technologies and for achieving burst-mode op- eration with high sensitivity and wide dynamic range using CMOS-IC technologies. An arrangement that reduces the elec- trical crosstalk to less than-100 dB was designed using three- dimensional electromagnetic field analysis. The configurations of a newly developed instantaneous-response CMOS LD driver circuit is also described and instantaneous-response CMOS re- ceiver circuit techniques are reviewed. With these techniques, we have succeeded in building optical transceiver modules for ATM-PON systems using PLC-hybrid-integration and inexpen- sive standard CMOS-IC fabrication processes. Under full-duplex operation at 156 Mb/s, fabricated transceiver modules showed re- ceiver sensitivity of better than-34 dBm and dynamic range of over 28 dB, which satisfy both the class-B and class-C specifica- tions recommended by ITU-T (International Telecommunication Union-Telecommunication standardization sector) G983.1 for the optical transceiver module tor an UNU (optical network unit).