Accurate time-delay measurement of optical delay components based on frequency-shifted self-heterodyne spectrum

Mengke Wang; Yixiang Hu; Shangjian Zhang; Heng Wang; Xinhai Zou; Yali Zhang; Yong Liu

doi:10.1117/12.2500656

6 November 2018 Accurate time-delay measurement of optical delay components based on frequency-shifted self-heterodyne spectrum

Mengke Wang, Yixiang Hu, Shangjian Zhang, Heng Wang, Xinhai Zou, Yali Zhang, Yong Liu

Author Affiliations +

Proceedings Volume 10812, Semiconductor Lasers and Applications VIII; 108120E (2018) https://doi.org/10.1117/12.2500656
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

An electrical method is proposed for the absolute time-delay characterization of optical delay components based on the frequency-shifted self-heterodyning. The method utilizes the electrical spectrum of the heterodyne products between the delayed optical signal and the frequency-shifted optical carrier, and achieves the intrinsic absolute time-delay measurement from the notch frequencies of the spectrum at microwave region. Moreover, our method enables highresolution and wide range measurement with low-frequency electrical spectrum analysis. The theoretical analysis is supported by experimental results.

Citation Download Citation

Mengke Wang, Yixiang Hu, Shangjian Zhang, Heng Wang, Xinhai Zou, Yali Zhang, and Yong Liu "Accurate time-delay measurement of optical delay components based on frequency-shifted self-heterodyne spectrum", Proc. SPIE 10812, Semiconductor Lasers and Applications VIII, 108120E (6 November 2018); https://doi.org/10.1117/12.2500656

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