Novel Grating Design for Out-of-Plane Coupling With Nonuniform Duty Cycle

We propose a waveguide grating coupler with nonuniform duty cycle for the out-of-plane coupling of light from a planar waveguide to an optical fiber, and evaluate the optical performances based on Bloch-wave analysis. The mode profile and focusing performance of the diffracted output beam are invest...

Full description

Saved in:
Bibliographic Details
Published inIEEE photonics technology letters Vol. 20; no. 9; pp. 730 - 732
Main Authors Yang, Jeong Su, O, Beom-Hoan, Hong, Sung Hoon, Lee, Seung Gol, Park, Se-Geun, Kim, Joo-Hee, Chung, Duck-Jin, Chang, Sung-Pil, Lee, El-Hang
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Beams (radiation)
Bloch-wave analysis
Coupling circuits
Diffraction
Diffraction gratings
Focusing
focusing performance
Gratings (spectra)
Joining
Nonuniform
nonuniform duty cycle
Optical coupling
Optical diffraction
Optical fibers
Optical planar waveguides
Optical waveguides
Performance analysis
Planar waveguides
Silicon
waveguide grating coupler
Online AccessGet full text

Cover

More Information
Summary:We propose a waveguide grating coupler with nonuniform duty cycle for the out-of-plane coupling of light from a planar waveguide to an optical fiber, and evaluate the optical performances based on Bloch-wave analysis. The mode profile and focusing performance of the diffracted output beam are investigated in terms of the duty cycle to improve optical coupling efficiency.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.921083