Title :
Integrated optical differential amplifier with large dynamic range for gigahertz bandwidth electrical signals
Author :
Berry, M.H. ; Gookin, D.M.
Author_Institution :
US Naval Ocean Syst. Center, San Diego, CA, USA
fDate :
3/1/1991 12:00:00 AM
Abstract :
An optoelectronic differential amplifier for gigahertz-bandwidth electrical signals using fiber optics and integrated optical devices is presented. In the amplifier presented the signal subtraction is done while still in the optical domain. The differential gain is a function of the electrical-to-optical and optical-to-electrical conversion factors. The common-mode rejection ratio of the differential amplifier at 1 GHz is greater than 30 dB. The common-mode rejection ratio depends on the time difference between the differential amplifier inputs. This device could be used as an integrated module in radar and communications systems.<>
Keywords :
integrated optics; operational amplifiers; optical communication equipment; solid-state microwave devices; 1 GHz; UHF; common-mode rejection ratio; communications systems; differential amplifier inputs; fiber optics; gigahertz bandwidth electrical signals; integrated module; large dynamic range; microwave devices; operational amplifiers; optical modulators; optical-to-electrical conversion factors; optoelectronic differential amplifier; radar systems; signal subtraction; Bandwidth; Differential amplifiers; Dynamic range; Integrated optics; Optical amplifiers; Optical devices; Optical fibers; Radar; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
