Tapered couplers for efficient interfacing between dielectric and photoniccrystal waveguides

Authors
Mekis, A Joannopoulos, JD
Citation
A. Mekis et Jd. Joannopoulos, Tapered couplers for efficient interfacing between dielectric and photoniccrystal waveguides, J LIGHTW T, 19(6), 2001, pp. 861-865
Citations number
14
Categorie Soggetti
Optics & Acoustics
Journal title
JOURNAL OF LIGHTWAVE TECHNOLOGY
ISSN journal
07338724 → ACNP
Volume
19
Issue
6
Year of publication
2001
Pages
861 - 865
Database
ISI
SICI code
0733-8724(200106)19:6<861:TCFEIB>2.0.ZU;2-9
Abstract
We design tapered waveguide junctions for coupling between photonic crystal and traditional dielectric waveguides and evaluate their transmission effi ciency. While the transmission efficiency is less than 60% using no taper, the tapered couplers have over 90% power transmission. We show that differe nt types of couplers are needed for efficient coupling into and out of phot onic crystal waveguides.