A NOVEL TRANSMITTER RECEIVER SWITCHING-CIRCUIT CONFIGURATION FOR HIGH-PERFORMANCE LD TRANSCEIVER IN SUBSCRIBER LOOP/

LD transceivers are very effective in reducing optical subscriber syst ems cost because they act as transmitters and receivers, This paper pr oposes a new transceiver switching circuit configuration, and two tech niques for suppressing and canceling the discharge current effect of l aser diodes, The new techniques, including mounting substrate optimiza tion such as high-isolation and low parasitic capacitance, yield a hig h-performance LD transceiver module with the minimum average receiving optical power level of -37.0 dBm and a wide dynamic range of up to 25 dB for burst mode optical input at 29.0 Mb/s.