Demultiplexing 2.48-Gb/s optical signals with a CMOS receiver array based on clocked-sense-amplifiers

• Published in: IEEE photonics technology letters Vol. 9; no. 8; pp. 1146 - 1148
• Main Authors: Woodward, T.K., Lentine, A.L., Goossen, K.W., Walker, J.A., Tseng, B.T., Hui, S.P., Lothian, J., Leibenguth, R.E.
• Format: Journal Article
• Language: English
• Published: IEEE 01-08-1997
• Subjects: Bandwidth; Clocks; CMOS technology; Demultiplexing; Optical arrays; Optical modulation; Optical receivers; Quantum well devices; Repeaters; Smart pixels
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/68.605531

A repeater array consisting of clocked-sense-amplifier-based optical receivers driving receivers driving 850-nm optical modulators is used to demultiplex a 2.48-Gb/s optical signal into eight 311-Mb/s optical data streams. The synchronous detection provided by the clocked receivers allows 2.48-Gb/s signals to be demultiplexed despite a repeater bandwidth of roughly 350 MHz. The repeater array contains 16 elements, is fully functional, and is realized in a hybrid MQW/CMOS smart pixel optoelectronic VLSI technology. The CMOS circuits are made in a 0.35-μm linewidth process. Total power dissipation for the entire array is 11.5 mW, and 120-fJ optical input signals are used.