Microwave photonic devices based on liquid crystal on silicon technology

Ruiqi Zheng, Erwin H.W. Chan, Xudong Wang, Xinhuan Feng, Bai Ou Guan

Research output: Contribution to journalReview articleResearchpeer-review

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Abstract

This paper reviews the recent developments in microwave photonic devices based on liquid crystal on silicon (LCOS) technology. The operation principle, functions and important specifications of an LCOS based optical processor are described. Three microwave photonic devices, which are microwave photonic notch filters, phase shifters and couplers, reported in the past five years are focused on in this paper. In addition, a new multi-function signal processing structure based on amplitude and phase control functions in conjunction with a power splitting function in a commercial LCOS based optical processor is presented. It has the ability to realize multiple time -shifting operations and multiple frequency-independent phase shifting operations at the same time and control multiple RF signal amplitudes, in a single unit. The results for the new multi-function microwave photonic signal processor demonstrate multiple tunable true time delay and phase shifting operations with less than 3 dB amplitude variation over a very wide frequency range of 10 to 40 GHz.

Original languageEnglish
Article number260
Pages (from-to)1-19
Number of pages19
JournalApplied Sciences (Switzerland)
Volume9
Issue number2
DOIs
Publication statusPublished - 12 Jan 2019

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Liquid Crystals
Photonic devices
Silicon
Liquid crystals
liquid crystals
Microwaves
photonics
microwaves
silicon
central processing units
Photonics
Phase control
Notch filters
phase control
Phase shifters
notches
couplers
specifications
signal processing
Time delay

Cite this

Zheng, Ruiqi ; Chan, Erwin H.W. ; Wang, Xudong ; Feng, Xinhuan ; Guan, Bai Ou. / Microwave photonic devices based on liquid crystal on silicon technology. In: Applied Sciences (Switzerland). 2019 ; Vol. 9, No. 2. pp. 1-19.
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abstract = "This paper reviews the recent developments in microwave photonic devices based on liquid crystal on silicon (LCOS) technology. The operation principle, functions and important specifications of an LCOS based optical processor are described. Three microwave photonic devices, which are microwave photonic notch filters, phase shifters and couplers, reported in the past five years are focused on in this paper. In addition, a new multi-function signal processing structure based on amplitude and phase control functions in conjunction with a power splitting function in a commercial LCOS based optical processor is presented. It has the ability to realize multiple time -shifting operations and multiple frequency-independent phase shifting operations at the same time and control multiple RF signal amplitudes, in a single unit. The results for the new multi-function microwave photonic signal processor demonstrate multiple tunable true time delay and phase shifting operations with less than 3 dB amplitude variation over a very wide frequency range of 10 to 40 GHz.",
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Microwave photonic devices based on liquid crystal on silicon technology. / Zheng, Ruiqi; Chan, Erwin H.W.; Wang, Xudong; Feng, Xinhuan; Guan, Bai Ou.

In: Applied Sciences (Switzerland), Vol. 9, No. 2, 260, 12.01.2019, p. 1-19.

Research output: Contribution to journalReview articleResearchpeer-review

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T1 - Microwave photonic devices based on liquid crystal on silicon technology

AU - Zheng, Ruiqi

AU - Chan, Erwin H.W.

AU - Wang, Xudong

AU - Feng, Xinhuan

AU - Guan, Bai Ou

PY - 2019/1/12

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N2 - This paper reviews the recent developments in microwave photonic devices based on liquid crystal on silicon (LCOS) technology. The operation principle, functions and important specifications of an LCOS based optical processor are described. Three microwave photonic devices, which are microwave photonic notch filters, phase shifters and couplers, reported in the past five years are focused on in this paper. In addition, a new multi-function signal processing structure based on amplitude and phase control functions in conjunction with a power splitting function in a commercial LCOS based optical processor is presented. It has the ability to realize multiple time -shifting operations and multiple frequency-independent phase shifting operations at the same time and control multiple RF signal amplitudes, in a single unit. The results for the new multi-function microwave photonic signal processor demonstrate multiple tunable true time delay and phase shifting operations with less than 3 dB amplitude variation over a very wide frequency range of 10 to 40 GHz.

AB - This paper reviews the recent developments in microwave photonic devices based on liquid crystal on silicon (LCOS) technology. The operation principle, functions and important specifications of an LCOS based optical processor are described. Three microwave photonic devices, which are microwave photonic notch filters, phase shifters and couplers, reported in the past five years are focused on in this paper. In addition, a new multi-function signal processing structure based on amplitude and phase control functions in conjunction with a power splitting function in a commercial LCOS based optical processor is presented. It has the ability to realize multiple time -shifting operations and multiple frequency-independent phase shifting operations at the same time and control multiple RF signal amplitudes, in a single unit. The results for the new multi-function microwave photonic signal processor demonstrate multiple tunable true time delay and phase shifting operations with less than 3 dB amplitude variation over a very wide frequency range of 10 to 40 GHz.

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