An Improved Cascade All-Optical Quantizing Scheme Based on Intensity-Modulated Label Channel

被引：0
|
作者：
Deng W. [1 ,2 ]
Kang Z. [2 ]
机构：
[1] Communication Department, Nanjing College of Information Technology, Nanjing, 210023, Jiangsu
[2] Department of Electronics and Information Engineering, The Hong Kong Polytechnic University, Hong Kong
来源：
Zhongguo Jiguang/Chinese Journal of Lasers | 2019年 / 46卷 / 11期
关键词：
All-optical analog-to-digital converter; Cascade all-optical quantizing; Effective-number-of-bits; Optical communications; Spur-free dynamic range;
D O I：
10.3788/CJL201946.1106003
中图分类号：
学科分类号：
摘要：
We propose an improved cascade all-optical quantizing scheme for the resolution enhancement of all-optical analog-to-digital converter. Employing an additional intensity-modulated label channel, remarkable quantization resolution over 8 bit is feasible for an ultra-wideband signal. Simulation results show that a 20 GHz radio frequency signal is digitalized using the proposed scheme with the spur-free dynamic range of 53.76 dBc and effective-number-of-bits of 8.18 bit. © 2019, Chinese Lasers Press. All right reserved.
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