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Proceedings Paper

High-accuracy optical vector analyzer based on optical double-sideband suppressed carrier modulation and Pound Drever Hall technique
Author(s): Zenghui Chen; Long Ye; Jian Dai; Tian Zhang; Feifei Yin; Yue Zhou; Kun Xu
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Paper Abstract

We report an optical vector network analysis (OVNA) based on optical suppressed carrier double-sideband (DSB) modulation and the Pound Drever Hall (PDH) technique. In this novel scheme, the optical carrier suppressed DSB modulation signal propagates through the high Q optical device, and then the double frequency of the driven radio frequency signal is detected, by which the frequency responses of the device can be accurately achieved. Comparing with the common DSB-based OVNA, by biasing the modulator at the minimum transmission point (MITP), the accuracy improvement can be realized since the errors caused by the even-order sidebands are eliminated. Moreover, the high stability of the proposed OVNA can also be achieved by using the PDH technique. In the proof-of-concept experiment, the magnitude and phase responses of the Fabry-Perot (FP) interferometer are realized with high accuracy when the modulation index is small. There is no repeated frequency response even if the test time is up to 30 minutes. The proposed scheme provides a novel strategy for high-accuracy frequency responses measurement, which can be potentially used in high Q optical devices characterization.

Paper Details

Date Published: 14 February 2019
PDF: 6 pages
Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 110482Q (14 February 2019); doi: 10.1117/12.2518595
Show Author Affiliations
Zenghui Chen, Beijing Univ. of Posts and Telecommunications (China)
Long Ye, Beijing Univ. of Posts and Telecommunications (China)
Jian Dai, Beijing Univ. of Posts and Telecommunications (China)
Tian Zhang, Beijing Univ. of Posts and Telecommunications (China)
Feifei Yin, Beijing Univ. of Posts and Telecommunications (China)
Yue Zhou, Beijing Univ. of Posts and Telecommunications (China)
Kun Xu, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 11048:
17th International Conference on Optical Communications and Networks (ICOCN2018)
Zhaohui Li, Editor(s)

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