Measurement of second-order dispersion fluctuation of fiber grating based on optical phase modulator

Yuxuan Zhu; Qian Chen; Lin Gui; Qing Shen; Hao Cheng; Suzhen Song; Mengmeng Wu

doi:10.1117/12.2583576

10 November 2020 Measurement of second-order dispersion fluctuation of fiber grating based on optical phase modulator

Yuxuan Zhu, Qian Chen, Lin Gui, Qing Shen, Hao Cheng, Suzhen Song, Mengmeng Wu

Proceedings Volume 11604, Optics Frontiers Online 2020: Optical Communications and Networks; 116040F (2020) https://doi.org/10.1117/12.2583576
Event: Optics Frontiers Online 2020: Optical Communications and Networks (OFO-2), 2020, Online Only

Abstract

When we use FBG to filter the optical signal, we pay more attention to its optical power spectrum and less attention to its dispersion fluctuation. However, if the dispersion fluctuation of FBG is too large, it may lead to signal distortion, so it is very important to detect the dispersion fluctuation of FBG. In this paper, we choose the FBG with wavelength of 1550nm and reflectivity of 95%, and use the method of phase to amplitude conversion to detect the second-order dispersion fluctuation of FBG. In the temperature range of 23 ° - 33.6 °, we have measured the optical power spectrum and the second-order dispersion fluctuation curve of the fiber grating, and analyzed the experimental results. Then we find that when the FBG with flat optical power spectrum but large dispersion fluctuation is used for filtering, the output signal will be distorted.

Citation Download Citation

Yuxuan Zhu, Qian Chen, Lin Gui, Qing Shen, Hao Cheng, Suzhen Song, and Mengmeng Wu "Measurement of second-order dispersion fluctuation of fiber grating based on optical phase modulator", Proc. SPIE 11604, Optics Frontiers Online 2020: Optical Communications and Networks, 116040F (10 November 2020); https://doi.org/10.1117/12.2583576

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