Title :
Dynamic characterization of optical microwave transducers
Author :
Berceli, Tibor ; Cabon, Beatrice ; Hilt, A. ; Quoc, A.H. ; Pic, E. ; Tedjini, Smail
Author_Institution :
Tech. Univ. Budapest, Hungary
Abstract :
Optical-microwave transducers based on FET devices are investigated to determine their dynamic characteristics. It is observed that the result of the well known frequency response method differs from that of a combined test method applying simultaneously a microwave signal and a modulated lightwave for driving the transducer. Based on these investigations a more precise circuit model is established for illuminated FET devices. The new circuit model describes the operation of optical-microwave transducers like mixers, phase detectors, amplifiers, injection locked oscillators, and modulators.<>
Keywords :
frequency response; injection locked oscillators; microwave amplifiers; microwave field effect transistors; microwave mixers; modulators; optical modulation; photoconducting devices; transducers; 2 GHz; 20 to 200 MHz; FET based devices; amplifiers; circuit model; dynamic characteristics; frequency response method; illuminated FET devices; injection locked oscillators; microwave signal; mixers; modulated lightwave; modulators; optical-microwave transducers; phase detectors; test method; Circuit testing; Frequency response; Microwave FETs; Microwave devices; Microwave theory and techniques; Optical devices; Optical modulation; Phase detection; Stimulated emission; Transducers;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406208
