Experimental Demonstration of All-Optical Analog-to-Digital Conversion With Balanced Detection Threshold Scheme

被引：7

作者：

Peng, Yue ^{[1
]}

Zhang, Hongming ^{[1
]}

Wu, Qingwei ^{[1
]}

Zhang, Yuancheng ^{[1
]}

Fu, Xin ^{[1
]}

Yao, Minyu ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Integrated Optoelect, Tsinghua Natl Lab Informat Sci & Technol, Dept Elect Engn, Beijing 100084, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2009年 / 21卷 / 23期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Balanced detection; optical analog-to-digital conversion (OADC); polarization interference; threshold; INTERFERENCE; CONVERTERS; DESIGN;

D O I：

10.1109/LPT.2009.2033560

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 balanced detection threshold scheme for all-optical analog-to-digital conversion is experimentally demonstrated. A 4-bit 10-GSamples/s all-optical analog-to-digital converter based on phase-shifted optical quantization and a balanced detection threshold scheme is realized to quantize a 9.9-GHz sinusoidal electrical signal, achieving a spur-free dynamic range of 24.2 dB. Compared with single-ended detection, the quantization result is improved with the balanced threshold scheme due to reducing the influence of the power fluctuation and improving the receiver sensitivity.

引用

页码：1776 / 1778

页数：3

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