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:
May. 18, 1993
Filed:
Nov. 26, 1991
Jay S Van Delden, Montville, NJ (US);
Optics for Research, Caldwell, NJ (US);
Abstract
An optical circulator which includes a first birefringent plate for receiving an incident beam of light from a first port, a Faraday rotator, a polarization transforming device, and a second birefringent plate immediately adjacent a second port and the polarization transforming device. The optical circulator further includes means for diverting light traveling from the second port to a direction of travel which is at a right angle to the prior direction of travel, whereby the light is directed to a third port. The diverting means is immediately adjacent the first birefringent plate and the first port, and permits the clear passage of light from the first port to the first birefringent plate. The optical circulator has a simplified design while providing for the efficient transmission of polarized light.