Compact slanted grating couplers
Keywords
diffraction gratings, integrated optics devices, micro-optical devices, waveguides, photonic integrated circuits
Abstract
We present a compact and efficient design for slanted grating couplers (SLGC's) to vertically connect fibers and planar waveguides without intermediate optics. The proposed SLGC employs a strong index modulated slanted grating. With the help of a genetic algorithm-based rigorous design tool, a 20 µm-long SLGC with 80.1% input coupling efficiency has been optimized. A rigorous mode analysis reveals that the phase-matching condition and Bragg condition are satisfied simultaneously with respect to the fundamental leaky mode supported by the optimized SLGC.
Original Publication Citation
B. Wang, J. Jiang, and G. P. Nordin, "Compact slanted grating couplers," Opt. Express 12(15), pp. 3313-3326 (24). http://www.opticsexpress.org/abstract.cfm?URI=OPEX-12-15-3313
BYU ScholarsArchive Citation
Nordin, Gregory P.; Jiang, J.; and Wang, B., "Compact slanted grating couplers" (2004). Faculty Publications. 1028.
https://scholarsarchive.byu.edu/facpub/1028
Document Type
Peer-Reviewed Article
Publication Date
2004-07-26
Permanent URL
http://hdl.lib.byu.edu/1877/575
Publisher
Optical Society of America
Language
English
College
Ira A. Fulton College of Engineering and Technology
Department
Electrical and Computer Engineering
Copyright Status
© 2004 Optical Society of America
Copyright Use Information
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