1 February 2014 Low-frequency analog signal distribution on digital photonic networks by optical delta-sigma modulation
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Abstract
We propose a delta-sigma modulation scheme for low- and medium-frequency signal transmission in a digital photonic network system. A 10-Gb/s-class optical transceiver with a delta-sigma modulator utilized as a high-speed analog-to-digital converter (ADC) provides a binary optical signal. On the signal reception side, a low-cost and slow-speed photonic receiver directly converts the binary signal into an analog signal at frequencies from several hundreds of kilohertz several tens of megahertz. Further, by using a clock and data recovery circuit at the receiver to reduce jitters, the single-sideband phase noise of the generated signals can be significantly reduced.
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Atsushi Kanno, Tetsuya Kawanishi, "Low-frequency analog signal distribution on digital photonic networks by optical delta-sigma modulation", Proc. SPIE 9007, Broadband Access Communication Technologies VIII, 90070O (1 February 2014); doi: 10.1117/12.2038114; https://doi.org/10.1117/12.2038114
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