Electro-optic deflection in a lithium niobate quasi-single mode waveguide with microstructured electrodes | Zendy

Fupeng Tian | Zendy; Huihui Lu | Zendy; Zhan Sui | Zendy; Jun Tao | Zendy; Jiangli Dong | Zendy; Xinyue Zhang | Zendy; Wentao Qiu | Zendy; Heyuan Guan | Zendy; Jianhui Yu | Zendy; Wenguo Zhu | Zendy; Yunhan Luo | Zendy; Jun Zhang | Zendy; Zhe Chen | Zendy

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Electro-optic deflection in a lithium niobate quasi-single mode waveguide with microstructured electrodes

Author(s) -

Fupeng Tian,

Huihui Lu,

Zhan Sui,

Jun Tao,

Jiangli Dong,

Xinyue Zhang,

Wentao Qiu,

Heyuan Guan,

Jianhui Yu,

Wenguo Zhu,

Yunhan Luo,

Jun Zhang,

Zhe Chen

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.030100

Subject(s) - optics , lithium niobate , materials science , deflection (physics) , waveguide , laser beam quality , laser , electrode , voltage , optoelectronics , laser beams , physics , quantum mechanics

We propose an electro-optic mode deflection device based on an annealed proton exchange (APE) waveguide in lithium niobate, associated with isosceles-triangle-shaped array electrodes and a horn-shaped input waveguide. The input waveguide is tapered down to ensure that the output of the device has a good beam quality, i.e., a quasi-single mode in this case. This new device allows beam deflection at a relative low voltage and large deflection angle. At an APE-waveguide width of 80 μm, mode deflections of 0.265 and 0.240 μm/V are obtained for 1064 and 980 nm, respectively. This beam deflection device can be applied in high-speed optical switch, and beam smoothing of a high-power laser, etc.

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