Abstract
A photonic quantization approach to implementing analog-to-digital conversion (ADC) in the optical domain with differential encoding employing a phase modulator and delay-line interferometers (DLIs) is proposed and demonstrated. In the proposed ADC system, the phase-modulated signal is sent to an array of DLIs that have identical time delay difference, but different phase shifts, which are employed to achieve quantization with differential encoding. A proof-of-concept experiment is performed. The quantization of a sinusoidal signal with a bit length of 4 is experimentally demonstrated.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Kun Xu, Jian Niu, Yitang Dai, Xiaoqiang Sun, Jian Dai, Jian Wu, and Jintong Lin
Appl. Opt. 50(14) 1995-2000 (2011)
Shuna Yang, Hongxia He, Hao Chi, and Ran Zeng
Opt. Express 27(24) 35565-35573 (2019)
Yitang Dai and Jianping Yao
Opt. Lett. 32(24) 3486-3488 (2007)