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. 07, 2013
Filed:
Jan. 22, 2010
Christopher N. Pannell, Orlando, FL (US);
Peter Mackay, Somerset, GB;
Christopher N. Pannell, Orlando, FL (US);
Peter MacKay, Somerset, GB;
Gooch and Housego PLC, Somerset, GB;
Abstract
A thermally compensated optical device includes in an optical path an input linear polarizer for transmitting linearly polarized light from a received light beam at a design wavelength. A composite reciprocal rotator includes a first reciprocal material and at least a second reciprocal material provides a reciprocal rotation having a temperature coefficient for reciprocal rotation (tempco). At least one Faraday rotator provides a non-reciprocal rotation having a temperature coefficient for non-reciprocal rotation (tempco). An output linear polarizer transmits forward light received after transmission by the Faraday rotator. At a design temperature, the tempcoand tempcohave opposite signs and can have magnitudes that match within 50%.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile