28 October 2015 Simplified 2-bit photonic digital-to-analog conversion unit based on polarization multiplexing
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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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Fangzheng Zhang, Fangzheng Zhang, Bindong Gao, Bindong Gao, Xiaozhong Ge, Xiaozhong Ge, Shilong Pan, 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 . Submission:
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