Simplified 2-bit photonic digital-to-analog conversion unit based on polarization multiplexing

Fangzheng Zhang; Bindong Gao; Xiaozhong Ge; Shilong Pan

doi:10.1117/1.OE.55.3.031115

28 October 2015 Simplified 2-bit photonic digital-to-analog conversion unit based on polarization multiplexing

Fangzheng Zhang, Bindong Gao, Xiaozhong Ge, Shilong Pan

Author Affiliations +

Optical Engineering, Vol. 55, Issue 3, 031115 (October 2015). https://doi.org/10.1117/1.OE.55.3.031115

Abstract

A 2-bit photonic digital-to-analog conversion unit is proposed and demonstrated based on polarization multiplexing. The proposed 2-bit digital-to-analog converter (DAC) unit is realized by optical intensity weighting and summing, and its complexity is greatly reduced compared with the traditional 2-bit photonic DACs. Performance of the proposed 2-bit DAC unit is experimentally investigated. The established 2-bit DAC unit achieves a good linear transfer function, and the effective number of bits is calculated to be 1.3. Based on the proposed 2-bit DAC unit, two DAC structures with higher (<2) bit resolutions are proposed and discussed, and the system complexity is expected to be reduced by half by using the proposed technique.

Citation Download Citation

Fangzheng Zhang, Bindong Gao, Xiaozhong Ge, and Shilong Pan "Simplified 2-bit photonic digital-to-analog conversion unit based on polarization multiplexing," Optical Engineering 55(3), 031115 (28 October 2015). https://doi.org/10.1117/1.OE.55.3.031115

Published: 28 October 2015

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