Planar focusing grating coupler

Details Planar focusing grating coupler Planar focusing grating coupler

2007-10-16

2007-10-16

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S130000

Reexamination Certificate

active

10913417

ABSTRACT:
Provided is a planar focusing grating coupler, comprising: a light waveguide including a cladding layer and a core layer formed on a substrate and maintaining incident laser light in a single mode; and a focusing grating coupler formed to have a predetermined grating pitch at a certain area over the core layer, wherein the light using to the light waveguide forms a focal point with the grating layer in the direction perpendicular to the focusing grating coupler, whereby an ultra small pickup head for a mobile optical disk can be used.

REFERENCES:
patent: 4779259 (1988-10-01), Kono et al.
patent: 4801184 (1989-01-01), Revelli
patent: 4830447 (1989-05-01), Kamiyama et al.
patent: 5657407 (1997-08-01), Li et al.
patent: 5677970 (1997-10-01), Nashimoto
patent: 6285813 (2001-09-01), Schultz et al.
patent: 2005/0121415 (2005-06-01), Paek et al.
Suhara et al., “Focusing Grating Coupler in AlGaAs Optical Waveguide” Aug. 1992, IEEE Photonics Technology Letters, vol. 4, No. 8., p. 903-905.
Paek et al., “High NA focusing grating coupler for blu-ray disc”, Technical Digest, Nov. 3-7, 2003.
Ura et al., “An Integrated-Optic Disk Pickup Device”, Journal of Lightwace Technology, Jul. 1986, pp. 913-918.
Sheard et al., “Focusing waveguide grating coupler using a diffractive doublet”, Applied Optics, Jul. 1997, pp. 4349-4354.

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