Title :
1-Gb/s two-beam transimpedance smart-pixel optical receivers made from hybrid GaAs MQW modulators bonded to 0.8 μm silicon CMOS
Author :
Woodward, T.K. ; Krishnamoorthy, A.V. ; Lentine, A.L. ; Goossen, K.W. ; Walker, J.A. ; Cunningham, J.E. ; Jan, W.Y. ; D´Asaro, L.A. ; Chirovsky, L.M.F. ; Hui, S.P. ; Tseng, B. ; Kossives, D. ; Dahringer, D. ; Leibenguth, R.E.
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
3/1/1996 12:00:00 AM
Abstract :
We have made two-beam smart-pixel optical receivers using a hybrid attachment of GaAs-AlGaAs multiple quantum-well (MQW) pin devices to foundry-fabricated 0.8-μm linewidth CMOS circuits. Results from a repeater in which receiver output is coupled to a transmitter circuit driving a differential pair of MQW modulators are reported. When tested with high-contrast, directly-modulated laser diodes, an optical energy of 26 fJ (-21.5 dBm) in each beam is required to obtain a bit error rate of 1×10/sup -9/ at 622 Mb/s, and operation at this error rate is observed to 1 Gb/s. The described receiver (one of several we have made) has three amplification stages, with the first being of the transimpedance type. The reported receiver fits easily within a 45×25 μm area, and the entire repeater circuit draws about 2 mA from a 5-V power supply, with the transmitter accounting for about 20 percent of the total.
Keywords :
CMOS integrated circuits; III-V semiconductors; VLSI; electro-optical modulation; gallium arsenide; integrated optoelectronics; optical receivers; p-i-n photodiodes; semiconductor lasers; semiconductor quantum wells; smart pixels; 0.8 mum; 1 Gbit/s; 2 mA; 26 fJ; 5 V; 622 Mbit/s; GaAs-AlGaAs; GaAs-AlGaAs multiple quantum-well pin devices; MQW modulators; amplification stages; bit error rate; differential pair; directly-modulated laser diodes; foundry-fabricated 0.8-/spl mu/m linewidth CMOS circuits; high-contrast; hybrid GaAs MQW modulators; hybrid attachment; optical energy; receiver output; repeater; repeater circuit; silicon CMOS; transimpedance type; transmitter circuit; two-beam transimpedance smart-pixel optical receivers; Bonding; Circuit testing; Coupling circuits; Gallium arsenide; Optical receivers; Optical transmitters; Quantum well devices; Quantum well lasers; Repeaters; Silicon;
Journal_Title :
Photonics Technology Letters, IEEE
