All-optical analog-to-digital conversion based on polarization-differential interference and phase modulation

被引：44

作者：

Li, Wangzhe ^{[1
]}

Zhang, Hongming ^{[1
]}

Wu, Qingwei ^{[1
]}

Zhang, Zhuangqian ^{[1
]}

Yao, Minyu ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Elect Engn, State Key Lab Integrated Optoelect, Beijing 100084, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2007年 / 19卷 / 5-8期

基金：

中国国家自然科学基金;

关键词：

optical interferometry; phase modulation; photonic analog-to-digital converter (ADC); photonic sampling;

D O I：

10.1109/LPT.2007.894939

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：

A novel approach of an all-optical analog-to-digital converter is proposed and demonstrated. One single-phase modulator and a continuous-wave laser diode are used to quantize the sinusoidal tone analog signal. Software sampling measurements yielded an effective number of bits of 4.1. Benefits of the proposed setup are its simple design, high bandwidth, and stability. The scheme is primarily limited in the optical domain by the speed of the phase modulator and in electronic domain by electrical comparators and logic devices.

引用

页码：625 / 627

页数：3

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