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arXiv · 2606.17932

Dual Line Coherent Detection

Nelson Castro·Yiming Li·Mohammed Patel·Frank Smyth·Sergei Turitsyn·Andrew Ellis
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Abstract

We experimentally demonstrate dual-line coherent detection using an optical frequency comb local oscillator, enabling large frequency offset tolerance with minimal additional signal processing. The proposed method achieves 200 GHz offset tolerance for 400 Gbit/s signals with low penalty, supporting uncooled, low-cost coherent transceivers.

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Nelson Castro, Yiming Li, Mohammed Patel, Frank Smyth, Sergei Turitsyn, Andrew Ellis. 2026-06-16. Dual Line Coherent Detection. https://arxiv.org/abs/2606.17932

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