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:
Jun. 04, 2013
Filed:
Jun. 12, 2002
Paulo E. X. Silveira, Boulder, CO (US);
Tony Sarto, Platteville, CO (US);
Larry Fabiny, Boulder, CO (US);
Marko Voitel, Boulder, CO (US);
Paulo E. X. Silveira, Boulder, CO (US);
Tony Sarto, Platteville, CO (US);
Larry Fabiny, Boulder, CO (US);
Marko Voitel, Boulder, CO (US);
Altera Corporation, San Jose, CA (US);
Abstract
Optical systems for routing light that reduce or eliminate polarization-dependent loss are provided. Such optical systems generally accommodate an optical element that has an intrinsic polarization-dependent loss and which is disposed to be encountered twice by the light being routed. In some instances, the optical element may be a dispersive element such as a diffraction grating or prism, but the invention has more general applicability. The optical system additionally includes both a reflective element and a wave plate assembly disposed to be encountered by the light between encounters with the dispersive element.