INTERFACES FOR HIGH-SPEED FIBEROPTIC LINKS - ANALYSIS AND EXPERIMENT

被引:27
作者
DARYOUSH, AS [1 ]
ACKERMAN, E [1 ]
SAMANT, NR [1 ]
WANUGA, S [1 ]
KASEMSET, D [1 ]
机构
[1] GE,ELECTR LAB,SYRACUSE,NY 13201
基金
美国国家航空航天局;
关键词
D O I
10.1109/22.106543
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An analysis of directly and externally modulated fiberoptic links is presented here. The theoretical analysis is based on the signal flow diagram of the interface circuits to the laser diode, Mach-Zehnder electro-optic modulator, and p-i-n photodiode. System parameters such as gain, noise figure, two-tone intermodulation distortion, and spurious free and compression dynamic range are expressed as a function of frequency and operating point of the laser and external modulator. Two directly and externally modulated fiber-optic links were designed and fabricated to verify the analytical models. The direct modulation FO link was developed at the Ku-band (11.6-12.4 GHz), whereas the external modulation link was at L-band (875-925 MHz). Spurious-free dynamic ranges of 95.8 dB.Hz2/3 and 113 dB.Hz2/3, respectively, were achieved, the best reported to date for these frequency bands. The predictions based on the analytical models match the measured results very well.
引用
收藏
页码:2031 / 2044
页数:14
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