Photodetector nonlinearity limitations on a high-dynamic range 3 GHz fiber optic link

被引：97

作者：

Williams, KJ ^{[1
]}

Nichols, LT ^{[1
]}

Esman, RD ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1998年 / 16卷 / 02期

关键词：

analog systems; electrooptic modulation; optical fiber delay lines; nonlinear distortion; nonlinearities; phase matching; photodetectors; photodiodes;

D O I：

10.1109/50.661009

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：

The performance of a de to 3 GHz externally modulated link utilizing balanced high-power photodetection is presented, Nonlinearity measurements of high power photodiodes show 1 dB compression currents in excess of 55 mA and an output third-order intercept point of +32 to +34 dBm, These high current photodetectors permit the use of high power lasers as external modulator sources for low noise fiber optic links with only small degradations in the predicted link dynamic range. An externally modulated link with a 240 mW NdYAG laser, a dual-output 4-V V-pi (de) modulator, and balanced 100 mA total photocurrent yielded a link noise figure from 15.5 to 17.5 dB, a spur-free dynamic range of 119.5 dBHz(2/3), and a l-dB compression dynamic range of 168.4 dBHz.

引用

页码：192 / 199

页数：8

共 30 条

[1] A DUAL-DETECTOR OPTICAL HETERODYNE RECEIVER FOR LOCAL OSCILLATOR NOISE SUPPRESSION [J].