Single-LiNbO3-slab-integrated 1xN electro-optic switch

Haixia Ren; Liren Liu; Zhe Song; Juan Zhang; De'an Liu

doi:10.1117/12.503953

12 December 2003 Single-LiNbO₃-slab-integrated 1xN electro-optic switch

Haixia Ren, Liren Liu, Zhe Song, Juan Zhang, De'an Liu

Proceedings Volume 5201, Photonic Devices and Algorithms for Computing V; (2003) https://doi.org/10.1117/12.503953
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Integration of optical systems is important in practical applications for enhanced compactness and stability, particularly for optical switch. In the previous reports, 1×N electro-optic switches were constructed by the assembling of discrete E-O elements. The aim of this paper is to develop a 1×N switch integrated in a single slab of LiNbO₃, which consists of an array of electro-optic polarization modulators between the interfaces for total-internal reflection. Due to the double refraction effect, the ordinary ray and the extraordinary ray have different reflections. From different switching states of modulators, the internally double reflection along the sequential interfaces of a crystal can lead to different directions of the output beam. On this basis, a 1×N optical switch is designed, which is a crystal slab of 2 refractive interfaces for beam input and output, 4 reflective interfaces for total-internally double reflection, and N-1 E-O modulators with pairs of electrodes. A voltage on the n pair of electrodes will induce output beam onto the n angular position. The suggested 1×N switch is simple and compact in construction, low in loss and insensitive to environment. An experimental 1×4 switch is demonstrated, too.

Citation Download Citation

Haixia Ren, Liren Liu, Zhe Song, Juan Zhang, and De'an Liu "Single-LiNbO₃-slab-integrated 1xN electro-optic switch", Proc. SPIE 5201, Photonic Devices and Algorithms for Computing V, (12 December 2003); https://doi.org/10.1117/12.503953

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