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arXiv · 2106.00802

Transmitter IQ Skew Calibration using Direct Detection

Wing Chau Ng·Xuefeng Tang·Zhuhong Zhang
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Abstract

We propose a transmitter skew calibration based on direct detection of coherent signals with estimation errors of +/-0.2ps, providing a reliable, accurate and low-cost scheme to calibrate skew for coherent transceivers. In October 2019, this work was submitted / was exposed to Optical Fiber Communication Conference 2020 but an acceptance was not granted. We claimed the first time to use a direct detection-based feedback method for coherent transmitter calibration.

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Wing Chau Ng, Xuefeng Tang, Zhuhong Zhang. 2021-06-01. Transmitter IQ Skew Calibration using Direct Detection. https://arxiv.org/abs/2106.00802

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