Study of ultrahigh-order modes in a symmetrical metal-cladding optical waveguide

We report theory and experiment on ultrahigh-order modes in a symmetrical metal-cladding thick optical waveguide. The waveguide consists of a LiNbO3 slab or a glass slab with a thickness greater than 0.1mm, two gold films deposited on the upper and bottom sides of the slab serving as the cladding of...

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Bibliographic Details
Published in:Applied physics letters 2004-11, Vol.85 (20), p.4579-4581
Main Authors: Lu, Haifeng, Cao, Zhuangqi, Li, Honggen, Shen, Qishen
Format: Article
Language:English
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Summary:We report theory and experiment on ultrahigh-order modes in a symmetrical metal-cladding thick optical waveguide. The waveguide consists of a LiNbO3 slab or a glass slab with a thickness greater than 0.1mm, two gold films deposited on the upper and bottom sides of the slab serving as the cladding of the waveguide. By using the free-space coupling technique, ultrahigh-order modes (m>2000) are excited, and its high sensitivity to both refractive index and thickness of the guide, as well as the polarization independence are demonstrated.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1823594