Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals

Annan Shang; Ruijia Liu; Yun Goo; Lee Mohammad; Ahsanul Kabir; Yaoyang Ji; Kaicheng Wu; Shizhuo Yin

doi:10.1364/OME.485178

Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals

Annan Shang, Ruijia Liu, Yun Goo, Lee Mohammad, Ahsanul Kabir, Yaoyang Ji, Kaicheng Wu, Shizhuo Yin

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Pulsed-biased higher speed (> 10 MHz @ 30 V, 100 ns pulse width) and DC-biased wider angle (105 mrads @ 410 V/mm) linear electro-optic (EO) deflection is reported in a thermally-controlled domain engineered (DE) ferroelectric (FE) potassium tantalate niobate [KTa_1−xNb_xO₃, KTN] crystal. DE-FE KTN crystals can not only provide a higher transmittance and larger linear EO coefficient, but also enable higher speed (10X) and wider angle (2X) deflection than that of its paraelectric equivalent. The physical mechanism behind the optimization of injected space charge on high deflection angles at high speeds is also addressed. This significantly improves its use in megahertz EO applications.

Original language	English (US)
Pages (from-to)	903-915
Number of pages	13
Journal	Optical Materials Express
Volume	13
Issue number	4
DOIs	https://doi.org/10.1364/OME.485178
State	Published - Apr 1 2023

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials

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10.1364/OME.485178

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title = "Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals",

abstract = "Pulsed-biased higher speed (> 10 MHz @ 30 V, 100 ns pulse width) and DC-biased wider angle (105 mrads @ 410 V/mm) linear electro-optic (EO) deflection is reported in a thermally-controlled domain engineered (DE) ferroelectric (FE) potassium tantalate niobate [KTa1−xNbxO3, KTN] crystal. DE-FE KTN crystals can not only provide a higher transmittance and larger linear EO coefficient, but also enable higher speed (10X) and wider angle (2X) deflection than that of its paraelectric equivalent. The physical mechanism behind the optimization of injected space charge on high deflection angles at high speeds is also addressed. This significantly improves its use in megahertz EO applications.",

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T1 - Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals

AU - Shang, Annan

AU - Liu, Ruijia

AU - Goo, Yun

AU - Mohammad, Lee

AU - Kabir, Ahsanul

AU - Ji, Yaoyang

AU - Wu, Kaicheng

AU - Yin, Shizhuo

PY - 2023/4/1

Y1 - 2023/4/1

N2 - Pulsed-biased higher speed (> 10 MHz @ 30 V, 100 ns pulse width) and DC-biased wider angle (105 mrads @ 410 V/mm) linear electro-optic (EO) deflection is reported in a thermally-controlled domain engineered (DE) ferroelectric (FE) potassium tantalate niobate [KTa1−xNbxO3, KTN] crystal. DE-FE KTN crystals can not only provide a higher transmittance and larger linear EO coefficient, but also enable higher speed (10X) and wider angle (2X) deflection than that of its paraelectric equivalent. The physical mechanism behind the optimization of injected space charge on high deflection angles at high speeds is also addressed. This significantly improves its use in megahertz EO applications.

AB - Pulsed-biased higher speed (> 10 MHz @ 30 V, 100 ns pulse width) and DC-biased wider angle (105 mrads @ 410 V/mm) linear electro-optic (EO) deflection is reported in a thermally-controlled domain engineered (DE) ferroelectric (FE) potassium tantalate niobate [KTa1−xNbxO3, KTN] crystal. DE-FE KTN crystals can not only provide a higher transmittance and larger linear EO coefficient, but also enable higher speed (10X) and wider angle (2X) deflection than that of its paraelectric equivalent. The physical mechanism behind the optimization of injected space charge on high deflection angles at high speeds is also addressed. This significantly improves its use in megahertz EO applications.

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Higher speed, wider angle linear electro-optic deflection via domain engineered KTN crystals

Abstract

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