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Proceedings Paper

A novel 2-bit photonic digital-to-analog converter based on quadrature phase modulation and differential demodulation
Author(s): Jinxin Liao; He Wen; Xiaoping Zheng; Bingkun Zhou
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Paper Abstract

A novel 2-bit PDAC based on quadrature phase modulation and differential demodulation together with balanced detection is proposed and experimentally demonstrated at sampling rates of 2.5GS/s and 10GS/s. The simulation results of expanded 4-bit PDAC from the 2-bit PDAC unit by using two channels of incoherent light with different wavelength are presented. This PDAC scheme is simple, compact and effective with high expansibility. Compared with other approaches, this method's output signal has a greater dynamic range and a higher noise margin.

Paper Details

Date Published: 10 December 2011
PDF: 6 pages
Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 830906 (10 December 2011); doi: 10.1117/12.904172
Show Author Affiliations
Jinxin Liao, Tsinghua Univ. (China)
He Wen, Tsinghua Univ. (China)
Xiaoping Zheng, Tsinghua Univ. (China)
Bingkun Zhou, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 8309:
Optical Transmission Systems, Subsystems, and Technologies IX

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