DISPERSION COMPENSATION FOR 10-GB/S LIGHTWAVE SYSTEMS BASED ON A SEMICONDUCTOR MACH-ZEHNDER MODULATOR

被引:14
作者
CARTLEDGE, JC [1 ]
DEBREGEAS, H [1 ]
ROLLAND, C [1 ]
机构
[1] BELL NO RES LTD,OTTAWA,ON K1Y 4H7,CANADA
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1109/68.345930
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
For 10 Gb/s lightwave systems based on a semiconductor Mach-Zehnder modulator, the following dispersion compensating schemes are examined theoretically; asymmetry in the splitting ratio of the modulator input Y-branch waveguide, linear equalization using an analog delay line equalizer, dispersion compensating fiber, and direct prechirping for NRZ signals. It is shown that the combination of an asymmetric input Y-branch waveguide, push-pull operation of the optical modulator, and dispersion compensating fiber offers the best dispersion limited transmission performance. With dispersion compensating fiber, a larger portion of the optical power is applied to the arm of the modulator with more absorption, whereas without dispersion compensating fiber, a larger portion of the optical power is applied to the arm of the modulator with less absorption.
引用
收藏
页码:224 / 226
页数:3
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