Title :
A 256-element CMOS imaging receiver for free-space optical communication
Author :
Leibowitz, B.S. ; Boser, B.E. ; Pister, K.S.J.
Author_Institution :
California Univ., Berkeley, CA, USA
Abstract :
This paper describes a CMOS imaging receiver for free-space optical (FSO) communication links. The die contains 256 parallel receive channels with -47 dBm optical sensitivity and 30 dB optical dynamic range. Arbitration circuitry multiplexes the data to a common bus. The 1.6 M transistor mixed-signal circuit is realized in 0.25 μm CMOS and measures 6.5×6.5 mm2. Reception at 500 kbps through a 1 km turbulent channel is demonstrated with 10 mW optical transmit power.
Keywords :
CMOS image sensors; mixed analogue-digital integrated circuits; multiplexing equipment; optical links; optical receivers; 0.25 micron; 1 km; 10 mW; 500 kbit/s; 6.5 mm; CMOS imaging receiver; FSO communication links; arbitration circuitry; common bus data multiplexing; free-space optical communication; mixed-signal circuit; multiple element receiver; optical dynamic range; optical sensitivity; parallel receive channels; turbulent optical channel; Dynamic range; Optical arrays; Optical attenuators; Optical fiber communication; Optical filters; Optical imaging; Optical receivers; Optical sensors; Optical transmitters; Sensor arrays;
Conference_Titel :
Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004
Print_ISBN :
0-7803-8495-4
DOI :
10.1109/CICC.2004.1358805
