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Optical and Quantum Electronics
Erschienen in: Optical and Quantum Electronics 10/2020

01.10.2020

LNOI waveguide grating based true time delay line for tunable bandpass microwave photonic filter

verfasst von: Zisu Gong, Bo He, Wei Ji, Rui Yin, Jingyao Li, Zerui Song

Erschienen in: Optical and Quantum Electronics | Ausgabe 10/2020

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Abstract

A precisely tunable true time delay line (TTDL) based on lithium niobate on insulator waveguide grating is proposed. Utilizing the electro-optic effect of lithium niobate, active tuning of reflected wavelength and time delay can be realized. The numerical simulation results show that, with the optimized grating structure and flexible electrode distribution, wide tuning range and high tuning accuracy of time delay can be achieved by simply controlling the charging position of the electrodes. This TTDL is applied to a tunable bandpass microwave photonic filter (TBMPF), which using PM-IM conversion to suppressed dc signal to achieve bandpass. In the TBMPF, the TTDL plays the role of introducing the dispersion for PM-IM conversion, time delay between the taps and tuning of central frequency. This TTDL can reduce the system complexity and cost of microwave photonic filter.
Vorheriger Artikel Structural, optical and photoluminescence investigations of nanocrystalline CuO thin films at different microwave powers
Nächster Artikel Comparison of bound magneto-polaron in circular, elliptical, and triangular quantum dot qubit

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Metadaten
Titel
LNOI waveguide grating based true time delay line for tunable bandpass microwave photonic filter
verfasst von
Zisu Gong
Bo He
Wei Ji
Rui Yin
Jingyao Li
Zerui Song
Publikationsdatum
01.10.2020
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 10/2020
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-020-02552-w

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