The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2009
Filed:
Dec. 26, 2007
Peter Guilfoyle, Zephyr Cove, NV (US);
Duane Louderback, Zephyr Cove, NV (US);
Ketan Petal, Stateline, NV (US);
Sven Mahnkopf, Dayton, NV (US);
Peter Guilfoyle, Zephyr Cove, NV (US);
Duane Louderback, Zephyr Cove, NV (US);
Ketan Petal, Stateline, NV (US);
Sven Mahnkopf, Dayton, NV (US);
Opticomp Corporation, Zephyr Cove, NV (US);
Abstract
A VCSEL waveguide grating coupler is provided such that a first and second mirror are positioned to define a resonant cavity between them. The waveguide grating coupler further includes a waveguide having a first grating formed as a part of the waveguide to couple light of a first polarization mode into the waveguide. A second grating is formed on the waveguide grating coupler and is orthogonal to the first grating. The second grating is operative to enhance the light coupled to the waveguide by creating a loss difference between light of the first polarization mode and light of a second polarization mode, so that light of the first polarization mode lases preferentially within the VCSEL.