A novel 2-bit photonic digital-to-analog converter based on quadrature phase modulation and differential demodulation

Jinxin Liao; He Wen; Xiaoping Zheng; Bingkun Zhou

doi:10.1117/12.904172

9 December 2011 A novel 2-bit photonic digital-to-analog converter based on quadrature phase modulation and differential demodulation

Jinxin Liao, He Wen, Xiaoping Zheng, Bingkun Zhou

Author Affiliations +

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 830906 (2011) https://doi.org/10.1117/12.904172
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

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.

Citation Download Citation

Jinxin Liao, He Wen, Xiaoping Zheng, and Bingkun Zhou "A novel 2-bit photonic digital-to-analog converter based on quadrature phase modulation and differential demodulation", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 830906 (9 December 2011); https://doi.org/10.1117/12.904172

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