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Polarization-dependent coupling in a 1x4 waveguide array in lithium niobate fabricated by femtosecond pulses

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Abstract

We demonstrate a 1×4 waveguide array produced by an IR femtosecond laser in z-cut lithium niobate (LiNbO3). The polarization dependence of light coupling in this waveguide structure is experimentally investigated. The coupling constants of the waveguide array are obtained by measuring the ratio of output power of each waveguide for extraordinary rays and ordinary rays, and the variation of coupled power in each waveguide as a function of the waveguide length are demonstrated.

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Authors and Affiliations

  1. Department of Physics, the State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800, Dong Chuan Road, Shanghai, 200240, P.R. China

    Hongyun Chen, Xianfeng Chen, Yishuai Zhang & Yuxing Xia

Authors
  1. Hongyun Chen
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  2. Xianfeng Chen
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  3. Yishuai Zhang
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  4. Yuxing Xia
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Correspondence to Xianfeng Chen.

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PACS

42.65.Re; 77.84.Dy; 42.82.Et

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Chen, H., Chen, X., Zhang, Y. et al. Polarization-dependent coupling in a 1x4 waveguide array in lithium niobate fabricated by femtosecond pulses. Appl. Phys. B 89, 25–28 (2007). https://doi.org/10.1007/s00340-007-2748-x

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  • DOI: https://doi.org/10.1007/s00340-007-2748-x

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