Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate

A miniature Fourier transform spectrometer is proposed using a thin-film lithium niobate electro-optical modulator instead of the conventional modulator made by titanium diffusion in lithium niobate. The modulator was fabricated by a contact lithography process, and its voltage-length and optical wa...

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Main Authors: Lichao Zhang, Guangyang Gou, Jiamin Chen, Wangzhe Li, Weichao Ma, Ruoming Li, Junming An, Yue Wang, Yuanyuan Liu, Wei Yan, Tianjun Ma, Chunxiu Liu, Jianjun Cheng, Zhimei Qi, Ning Xue
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/2/458
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author Lichao Zhang
Guangyang Gou
Jiamin Chen
Wangzhe Li
Weichao Ma
Ruoming Li
Junming An
Yue Wang
Yuanyuan Liu
Wei Yan
Tianjun Ma
Chunxiu Liu
Jianjun Cheng
Zhimei Qi
Ning Xue
author_facet Lichao Zhang
Guangyang Gou
Jiamin Chen
Wangzhe Li
Weichao Ma
Ruoming Li
Junming An
Yue Wang
Yuanyuan Liu
Wei Yan
Tianjun Ma
Chunxiu Liu
Jianjun Cheng
Zhimei Qi
Ning Xue
author_sort Lichao Zhang
collection DOAJ
description A miniature Fourier transform spectrometer is proposed using a thin-film lithium niobate electro-optical modulator instead of the conventional modulator made by titanium diffusion in lithium niobate. The modulator was fabricated by a contact lithography process, and its voltage-length and optical waveguide loss were 2.26 V·cm and 1.01 dB/cm, respectively. Based on the wavelength dispersion of the half-wave voltage of the fabricated modulator, the emission spectrum of the input signal was retrieved by Fourier transform processing of the interferogram, and the analysis of the experimental data of monochromatic light shows that the proposed miniaturized FTS can effectively identify the input signal wavelength.
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spelling doaj.art-ceacc8ca9f074555837d8b2edf51bbaa2023-11-16T22:12:32ZengMDPI AGMicromachines2072-666X2023-02-0114245810.3390/mi14020458Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium NiobateLichao Zhang0Guangyang Gou1Jiamin Chen2Wangzhe Li3Weichao Ma4Ruoming Li5Junming An6Yue Wang7Yuanyuan Liu8Wei Yan9Tianjun Ma10Chunxiu Liu11Jianjun Cheng12Zhimei Qi13Ning Xue14State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaInstitute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaInstitute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaInstitute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaSchool of Integrated Circuit, Quanzhou University of Information Engineering, Quanzhou 362000, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, ChinaA miniature Fourier transform spectrometer is proposed using a thin-film lithium niobate electro-optical modulator instead of the conventional modulator made by titanium diffusion in lithium niobate. The modulator was fabricated by a contact lithography process, and its voltage-length and optical waveguide loss were 2.26 V·cm and 1.01 dB/cm, respectively. Based on the wavelength dispersion of the half-wave voltage of the fabricated modulator, the emission spectrum of the input signal was retrieved by Fourier transform processing of the interferogram, and the analysis of the experimental data of monochromatic light shows that the proposed miniaturized FTS can effectively identify the input signal wavelength.https://www.mdpi.com/2072-666X/14/2/458lithium niobateFourier transform spectrometerelectro-optical modulation
spellingShingle Lichao Zhang
Guangyang Gou
Jiamin Chen
Wangzhe Li
Weichao Ma
Ruoming Li
Junming An
Yue Wang
Yuanyuan Liu
Wei Yan
Tianjun Ma
Chunxiu Liu
Jianjun Cheng
Zhimei Qi
Ning Xue
Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
Micromachines
lithium niobate
Fourier transform spectrometer
electro-optical modulation
title Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
title_full Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
title_fullStr Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
title_full_unstemmed Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
title_short Miniature Fourier Transform Spectrometer Based on Thin-Film Lithium Niobate
title_sort miniature fourier transform spectrometer based on thin film lithium niobate
topic lithium niobate
Fourier transform spectrometer
electro-optical modulation
url https://www.mdpi.com/2072-666X/14/2/458
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