NOISE PERFORMANCE OF A GAAS-MESFET AS AN OPTICAL-DETECTOR AND AS AN OPTOELECTRONIC MIXER IN ANALOG OPTICAL LINKS

Authors
UREY Z WU D GOMES NJ DAVIES PA
Citation
Z. Urey et al., NOISE PERFORMANCE OF A GAAS-MESFET AS AN OPTICAL-DETECTOR AND AS AN OPTOELECTRONIC MIXER IN ANALOG OPTICAL LINKS, Electronics Letters, 29(2), 1993, pp. 147-149
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
29
Issue
2
Year of publication
1993
Pages
147 - 149
Database
ISI
SICI code
0013-5194(1993)29:2<147:NPOAGA>2.0.ZU;2-N
Abstract
Noise measurements with a GaAs MESFET employed as a photodetector or a s an optoelectronic mixer are reported. Despite its higher noise it is shown that with proper biasing the GaAs MESFET provided a higher carr ier-to-noise ratio than a pin photodiode, and as an optoelectronic mix er provided a comparable signal-to-noise ratio to that of a convention al pin and microwave mixer combination. The implications of using GaAs MESFETs in these configurations are discussed.