Optical waveguide grating coupler

Details Optical waveguide grating coupler Optical waveguide grating coupler

2007-07-17

2007-07-17

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S043000, C359S574000, C359S575000

Reexamination Certificate

active

10776475

ABSTRACT:
An optical waveguide grating coupler for coupling light between a planar waveguide and an optical element such as an optical fiber. The optical waveguide grating coupler includes a grating comprising a plurality of elongate scattering elements. The optical waveguide grating coupler is preferably flared, and in various embodiments has hyperbolically shaped sidewalls. The elongate scattering elements are preferably curved, and in some embodiments, the scattering elements have elliptically curved shapes. Preferably, the elongated scattering elements have grating widths selected to accommodate the desired optical intensity distribution.

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“Low Loss Nanophotonic Waveguides and Ring Resonators in Silicon-on-Insulator”; Beats, et al.
“Large-Scale Production Techiques for Photonic Nanostructures”; Bogaerts, et al.
“CMOS-Compatible Planar Silicon Waveguide-Grating-Coupler Photodetectors Fabricated on Silicon-on-Insulator (SOI) Substrates”; S.M. Csutak, S. Dakshina-Murthy & .
Joe C. Campbell; IEEE Journal of Quantum Electronics, vol. 38 No. 5 May 2002.
“Buried-Oxide Silicon-on-Insulator Structures II: Waveguide Grating Couplers”; Emmons, et al; IEEE Journal of Quantum Electronics, vol. 28 No. 1 Jan. 1992.
“Integrated Optics for Optical Head Applications”; Ochiai et al; Electronics Letters Aug. 18, 1994 vol. 30 No. 17, p. 1403-1404.
“Effects of Grating Heights on Highly Efficient Unibond SOI Waveguide Grating Couplers”; Ang, et al; IEEE Photonics Technology Letters vol. 12 No. 1 Jan. 2000.
“Mode Matching Technique for Highly Efficient Coupling Between Dielectric Waveguides and Planar Photonic Crystal Circuits”; Sanchis, et al.
“Buried-Oxide Silicon-on-Insulator Structures II: Waveguide Grating Couplers”; Emmons, et al; IEEE Journal of Quantum Electronics, vol. 28 No. 1 Jan. 1992.
“Non Uniform Grating Couplers for Coupling of Gaussian Beams to Compact waveguides”; West, et al; Published in the Integrated Photonics Research Technical Digest 1994.
“Low Loss Nanophotonic Waveguides and Ring Resonators in Silicon-on-Insulator”; Beats, et al, May 2004.
“Large-Scale Production Techniques for Photonic Nanostructures”; Bogaerts, et al, Aug. 2003.
“CMOS-Compatible Planar Silicon Waveguides-Grating-Coupler Photodetectors Fabricated on Silicon-on-Insulator (SOI) Substrates”; S.M. Csutak, S. Dakshina-Murthy & May 2002.
Joe C. Campbell; IEEE Journal of Quantum Electronics, vol. 38 No. 5 May 2002.
“Buried-Oxide Silicon-on-Insulator Structures II: Waveguide Grating Couplers”; Emmons, et al; IEEE Journal of Quantum Electronics, vol. 28 No. 1 Jan. 1992.
“Integrated Optics for Optical Head Applications”; Ochiai et al; Electronics Letters 18th Aug. 1994 vol. 30 No. 17, p. 1403-1404.
“Effects of Grating Heights on Highly Efficient Unibond SOI Waveguide Grating Couplers”; Ang, et al; IEEE Photonics Technology Letters vol. 12 No. 1 Jan. 2000.
“Mode Matching Technique for Highly Efficient Coupling Between Dielectric Waveguides and Planar Photonic Crystal Circuits”; Sanchis, et al, Dec. 2002.
“Buried-Oxide Silicon-on-Insulator Structures II: Waveguide Grating Couplers”; Emmons, et al; IEEE Journal of Quantum Electronics, vol. 28 No. 1 Jan. 1992.
“Non Uniform Grating Couplers for Coupling of Gaussian Beams to Compact Waveguides”; West, et al; Published in the Integrated Photonics Research Technical Digest 1994.

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