消光比
材料科学
行波
光学
调制(音乐)
饱和(图论)
光电子学
脉冲宽度调制
电压
物理
电气工程
波长
工程类
数学
组合数学
数学分析
声学
作者
Yi‐Jen Chiu,Hsu-Feng Chou,V. Kaman,Pierre Abraham,John E. Bowers
出处
期刊:IEEE Photonics Technology Letters
[Institute of Electrical and Electronics Engineers]
日期:2002-06-01
卷期号:14 (6): 792-794
被引量:60
标识
DOI:10.1109/lpt.2002.1003095
摘要
An InGaAsP multiquantum-well traveling-wave electroabsorption modulator is demonstrated with high extinction ratio and modulation efficiency. By designing a strain-compensated quantum-well active region with traveling-wave design, high saturation power (>14 dBm) for >20-GHz high-speed performance (1.5 dB drop at 20 GHz) is achieved. Due to high modulation efficiency (>30 dBN for 0 to 1 V 40-dB extinction ratio in 2 V), error free 10-Gb/s operation with 1 V/sub p-p/ driving voltage is obtained. By comparing codirections and counterdirections of optical and microwave interactions, pulse generation at 40 GHz shows that the traveling-wave performance has an advantage for short pulses with high-power output, where pulsewidth as short as 4.5 ps is obtained in this kind of device.
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