Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Min Fu; Youen Jiang; Qi Xiao; Xue Pan; Li Zhou; Xuechun Li; Jianqiang Zhu

doi:10.1117/12.2654704

15 December 2022 Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping

Min Fu, Youen Jiang, Qi Xiao, Xue Pan, Li Zhou, Xuechun Li, Jianqiang Zhu

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 1247824 (2022) https://doi.org/10.1117/12.2654704
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

To achieve high-precision dispersion measurement of optical components, a new method based on spectral shaping and frequency-to-time mapping was proposed, which was experimentally demonstrated and verified. In this research, a modelocked laser and a home-made spectral shaper were used to realize the spectral shaping of laser pulse with fingerprint-like characteristic. After transmitted through a dispersive medium, the temporal profile of the laser pulse became a scaled replica profile of the spectrum owing to the frequency-to-time mapping of chirped pulse. A Taylor-expanded chromatic dispersion model and least-square method were adopted for data analysis, which realized a measurement of 1-km fiber to the second-order dispersion with an error of 0.43%. The precision of the dispersion measurement was greatly enhanced by constructing a fingerprint-like characteristic spectrum. The experimental results showed that this method has better robustness and fidelity for different types of optical fiber, as well as various dispersive components in high-power laser system.

Citation Download Citation

Min Fu, Youen Jiang, Qi Xiao, Xue Pan, Li Zhou, Xuechun Li, and Jianqiang Zhu "Optical fiber dispersion measurements based on spectral shaping and frequency-to-time mapping", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 1247824 (15 December 2022); https://doi.org/10.1117/12.2654704

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