Electro-optic modulation experiments for light propagating bias the optic axis in LiNbO3

Lingyu Wan; Yu Zhou; Yanan Zhi; Liren Liu; Jianfeng Sun

doi:10.1117/12.860395

23 August 2010 Electro-optic modulation experiments for light propagating bias the optic axis in LiNbO₃

Lingyu Wan, Yu Zhou, Yanan Zhi, Liren Liu, Jianfeng Sun

Proceedings Volume 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV; 77810Z (2010) https://doi.org/10.1117/12.860395
Event: SPIE Photonic Devices + Applications, 2010, San Diego, California, United States

Abstract

Characteristic of electro-optic modulation of light propagating near the optic axis in a uniaxial crystal is well known but not for the cases of propagating bias the optic axis. In this paper, two pairs of LiNbO₃ crystal plates with the same sizes consist of an optical system in where the sum of geometrically optical length of o-ray and e-ray is equal. And then the characteristics of electro-optic modulation of light propagating bias the optic axis in LiNbO₃ are studied experimentally through a coherent received system. The additional phase shift caused by electro-optic effect is measured. The relation of phase shift varying with applied electric-field is reported when the angle between incident beam and the optic axis is 45°. Based on above experiments, a new 90º optical hybrid will be developed.

Citation Download Citation

Lingyu Wan, Yu Zhou, Yanan Zhi, Liren Liu, and Jianfeng Sun "Electro-optic modulation experiments for light propagating bias the optic axis in LiNbO₃", Proc. SPIE 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV, 77810Z (23 August 2010); https://doi.org/10.1117/12.860395

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KEYWORDS

Geometrical optics

Electro optics

Crystals

Modulation

Laser crystals

Phase shifts

Hybrid optics

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