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Proceedings Paper

Theoretical characteristics of TM-pass waveguide polarizers for glass-integrated optics using periodic dielectric multilayer as cladding
Author(s): Kazutaka Baba; Tamon Iden; Mitsunobu Miyagi
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Paper Abstract

A novel TM-pass waveguide polarizer, the cladding of which consists of a periodic dielectric multilayer, has been theoretically investigated for the glass integrated optics. The periodic dielectric multilayer exhibits large optical anisotropy and the effective refractive index for the TE polarization becomes higher than that for the TM polarization. Therefore, the highly efficient TM-pass waveguide polarizer can be formed by using the periodic dielectric multilayer whose effective refractive indices satisfy the condition nTE>nc>nTM, where nc represents the refractive index of the core. As it is difficult to fabricate the thick periodic multilayer by using conventional film deposition systems, we also proposed to overlay the thin periodic dielectric multilayer by using conventional film deposition systems, we also proposed to overlay the thin periodic dielectric multilayer with the fully thick polymer layer, which can easy be formed by using a dipping method. It has been theoretically confirmed that the high extinction ratio is kept while the structural parameters, including the fill fraction for the periodic dielectric multilayer and the refractive index of the polymer layer, satisfy the polarizer condition. As the extinction ratio is high and the structural tolerance is not severe in comparison with other waveguide polarizers, the proposed waveguide polarizer would be useful for the glass integrated optics.

Paper Details

Date Published: 15 May 2001
PDF: 8 pages
Proc. SPIE 4277, Integrated Optics Devices V, (15 May 2001); doi: 10.1117/12.426785
Show Author Affiliations
Kazutaka Baba, Tohoku Univ. (Japan)
Tamon Iden, Tohoku Univ. (Japan)
Mitsunobu Miyagi, Tohoku Univ. (Japan)


Published in SPIE Proceedings Vol. 4277:
Integrated Optics Devices V
Giancarlo C. Righini; Seppo Honkanen, Editor(s)

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