Paper
11 November 2008 An optical quantizing and coding method for all-optical ADC based on asymmetrical nonlinear optical-loop mirrors
Lixun Zhang, Yong Liu, Yongzhi Liu
Author Affiliations +
Proceedings Volume 7136, Optical Transmission, Switching, and Subsystems VI; 713640 (2008) https://doi.org/10.1117/12.804179
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China
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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lixun Zhang, Yong Liu, and Yongzhi Liu "An optical quantizing and coding method for all-optical ADC based on asymmetrical nonlinear optical-loop mirrors", Proc. SPIE 7136, Optical Transmission, Switching, and Subsystems VI, 713640 (11 November 2008); https://doi.org/10.1117/12.804179
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KEYWORDS
Mirrors

Computer programming

Modulation

Analog electronics

Ultrafast phenomena

Fiber lasers

Nonlinear optics

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