Title :
Interfaces for high-speed fiberoptics links
Author :
Daryoush, A.S. ; Samant, N. ; Ackerman, E. ; Wanuga, S. ; Kasemset, D.
Author_Institution :
Center for Microwave-Lightwave Eng., Drexel Univ., Philadelphia, PA, USA
Abstract :
An analysis of directly and externally modulated fiber-optic (FO) links is presented. The theoretical analysis is based on the signal flow graph of the interface circuits to the laser diode, the Mach-Zehnder electrooptic modulator, and the p-i-n photodiode. The system parameters, such as gain, noise figure, two-tone intermodulation distortion, and dynamic range, are expressed as a function of frequency. FO link analytical models are compared with the experimental results obtained on a custom-designed directly modulated FO link at 12 GHz and an externally modulated FO link at 900 MHz.<>
Keywords :
intermodulation; optical communication; optical fibres; optical links; optical modulation; 12 GHz; 900 MHz; IMD; Mach-Zehnder electrooptic modulator; direct modulation; dynamic range; external modulation; fibre optic link; frequency; gain; high-speed fiberoptics links; interface circuits; laser diode; link analytical models; noise figure; optical fibre link; p-i-n photodiode; signal flow graph; system parameters; two-tone intermodulation distortion; Circuits; Diode lasers; Dynamic range; Electrooptic modulators; Flow graphs; Frequency; Intermodulation distortion; Noise figure; PIN photodiodes; Signal analysis;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.146988
