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Proceedings Paper

An optical quantizing and coding method for all-optical ADC based on asymmetrical nonlinear optical-loop mirrors
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Paper Abstract

Self- and cross-phase modulation (SPM, XPM) in fiber is expected to play a major role in ultrafast all-optical analog-todigital conversion(ADC), which can overcome the obstacles of inherently limited operating speed of electronic ADC. In this paper, we propose an optical quantizing and coding method for all-optical ADC based on asymmetrical nonlinear optical-loop mirrors . The multiperiod transfer function, which is the key to quantizing and coding, is achieved through a careful design of the asymmetrical nonlinear optical-loop mirrors. We conducted proof-of-principle numerical simulation and successfully demonstrated 3-bits all optical ADC with Gray code output, it is ready for experiments in future. The proposed optical quantizing and coding, combined with existing optical sampling techniques, will enable ultrafast photonic ADC without electronics.

Paper Details

Date Published: 11 November 2008
PDF: 5 pages
Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 713640 (11 November 2008); doi: 10.1117/12.804179
Show Author Affiliations
Lixun Zhang, Univ. of Electronic Science and Technology of China (China)
Yong Liu, Univ. of Electronic Science and Technology of China (China)
Yongzhi Liu, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7136:
Optical Transmission, Switching, and Subsystems VI
Ken-ichi Kitayama; Pierpaolo C. Ghiggino; Kim Roberts; Yikai Su, Editor(s)

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