Athermal AWG with hybrid material structure waveguide

Daqing Zhu; Zhene Xu; Dongsheng Lu

doi:10.1117/12.481268

28 August 2002 Athermal AWG with hybrid material structure waveguide

Daqing Zhu, Zhene Xu, Dongsheng Lu

Proceedings Volume 4904, Optical Fiber and Planar Waveguide Technology II; (2002) https://doi.org/10.1117/12.481268
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

The temperature related the spectrum shift is a serious problem of arrayed waveguide grating (AWG). This paper present a method for reducing the temperature-related spectrum shifts in AWG device. The waveguide of a three-layer hybrid material structure is used in this method. In the hybrid structure, polymer which has a negative coefficient of refractive index related to temperature and silica material which has a positive refractive index coefficient of temperature are employed. The hybrid structure waveguide has a negative coefficient of efficient refractive index related to temperature, which can compensate the phase change due to the length change when temperature changes. Finite difference method is used to analyze three layer athermal waveguide structure, and the maximum temperature related spectrum shift of O.026nm for the designed AWG, which is about one thirtieth of the normal silica/silicon AWG structure, is achieved.

Citation Download Citation

Daqing Zhu, Zhene Xu, and Dongsheng Lu "Athermal AWG with hybrid material structure waveguide", Proc. SPIE 4904, Optical Fiber and Planar Waveguide Technology II, (28 August 2002); https://doi.org/10.1117/12.481268

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KEYWORDS

Waveguides

Cladding

Silica

Temperature metrology

Polymers

Refractive index

Optics manufacturing

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