7 February 2015 Coherent detection in self-homodyne systems with single and multi-core transmission
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Abstract
This work reviews the latest advancements in coherent self-homodyne detection (SHD) using signals with polarizationor space-multiplexed pilot tones (PTs) originating from the same light source, towards the implementation of low-cost coherent receivers. The coherency between signals and PTs drastically reduces laser linewidth requirements, enabling the use of high-order modulation formats with low-cost DFB lasers. In this work, we revise the application of SHD in high-capacity space-division multiplexed links using multi-core fibers, outlining optical signal-to-noise ratio, skew and phase noise requirements of such systems. Furthermore, we evaluate the application of SHD for the implementation of laser-less optical network units in passive optical networks, as well as recent developments in digital SHD techniques.
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Ruben S. Luís, Ruben S. Luís, Benjamin J. Puttnam, Benjamin J. Puttnam, José-Manuel Delgado Mendinueta, José-Manuel Delgado Mendinueta, Ali Shahpari, Ali Shahpari, Zoran Vujičić, Zoran Vujičić, Werner Klaus, Werner Klaus, Jun Sakaguchi, Jun Sakaguchi, Yoshinari Awaji, Yoshinari Awaji, Antonio Teixeira, Antonio Teixeira, Naoya Wada, Naoya Wada, Tetsuya Kawanishi, Tetsuya Kawanishi, Atsushi Kanno, Atsushi Kanno, } "Coherent detection in self-homodyne systems with single and multi-core transmission", Proc. SPIE 9389, Next-Generation Optical Communication: Components, Sub-Systems, and Systems IV, 93890P (7 February 2015); doi: 10.1117/12.2081686; https://doi.org/10.1117/12.2081686
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