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Proceedings Paper

Exchangeable grating couplers for integrated optics
Author(s): Miroslav Skalsky; Jiri Ctyroky; Miroslav Miler
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Paper Abstract

Mode spectroscopy is a widely used technique for characterizing planar optical waveguides. Prism couplers are mostly used due to their versatility. For higher-index waveguides like SiO2/SiN or GaInAsP/InP, prism coupling is hampered by the lack of suitable high-index material for fabricating coupling prisms. In this case, short-period grating couplers could be used, instead. We describe the fabrication of “exchangeable” grating couplers with 1200, 1800, and 2400 lines/mm into a photo-curable polymer by copying master grating generated holographically. The grating couplers were applied to glass and Si/SiO2/SiN waveguides, and results were compared with those obtained using prism coupling. Fabrication of gratings with shorter periods is under way.

Paper Details

Date Published: 8 July 2003
PDF: 6 pages
Proc. SPIE 5036, Photonics, Devices, and Systems II, (8 July 2003); doi: 10.1117/12.498525
Show Author Affiliations
Miroslav Skalsky, Institute of Radio Engineering and Electronics (Czech Republic)
Jiri Ctyroky, Institute of Radio Engineering and Electronics (Czech Republic)
Miroslav Miler, Institute of Radio Engineering and Electronics (Czech Republic)

Published in SPIE Proceedings Vol. 5036:
Photonics, Devices, and Systems II
Miroslav Hrabovsky; Dagmar Senderakova; Pavel Tomanek, Editor(s)

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