Title :
DC-1 Gb/s burst-mode compatible receiver for optical bus applications
Author :
Ota, Yusuke ; Swartz, Robert G. ; Archer, Vance D., III
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
2/1/1992 12:00:00 AM
Abstract :
The characteristics and performance of a high-speed, burst-mode compatible receiver for optical bus or packet communications are described. It employs an Si bipolar differential transimpedance amplifier, an auto-threshold tracking level control circuit, and a DC-coupled decision circuit (ECL compatible quantizer). To cope with intermittent data packets, the threshold control circuit can capture data amplitude and set the logic threshold in about 1 ns. Using an avalanche photodiode, the typical receiver sensitivity is -37.5 dBm (10 -9 BER) at bit rates up to 900 Mb/s, with a dynamic range of 23 dB for both pseudorandom and burst-mode signals. At 1 Gb/s, the sensitivity is -35 dBm. With a worst-case reset time <100 ns for the threshold control circuit, this receiver can be used for optical bus applications where data signals with varying optical power are employed
Keywords :
avalanche photodiodes; computer interfaces; optical communication equipment; receivers; sensitivity; 1 Gbit/s; 1 ns; 100 ns; 900 Mbit/s; DC-coupled decision circuit; ECL compatible quantizer; Si; auto-threshold tracking level control circuit; avalanche photodiode; bipolar differential transimpedance amplifier; burst-mode compatible receiver; data amplitude; data encoding; dynamic range; high-speed; intermittent data packets; logic threshold; optical bus; packet communications; pseudorandom signals; receiver sensitivity; reset time; varying optical power; Avalanche photodiodes; Communication system control; Differential amplifiers; High speed optical techniques; Level control; Logic circuits; Optical amplifiers; Optical receivers; Optical sensors; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
