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

fYear

2004

fDate

3-6 Oct. 2004

Firstpage

303

Lastpage

306

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2004. Proceedings of the IEEE 2004

Print_ISBN

0-7803-8495-4

Type

conf

DOI

10.1109/CICC.2004.1358805

Filename

1358805