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:
Jul. 01, 2003
Filed:
Jun. 25, 2001
Meng Xue, Union City, CA (US);
Kok-Wal Chang, Los Altos, CA (US);
Xinglong Wang, San Jose, CA (US);
Lihong Yuchi, San Jose, CA (US);
JDS Uniphase Corporation, San Jose, CA (US);
Abstract
An improved design of beam splitting device is described that is formed by cutting a birefringent material to predetermined dimensions. The beam splitting device resolves input light into mutually orthogonal linearly polarised beams. The mutually orthogonal linearly polarised beams propagate on either side of an axis as defined by the propagation axis of the input light. Such beam splitting devices lends themselves to a reduction in the overall dimensions of an optical system. In particular an optical circulator is described that employs such beam splitting devices so as to allow the transfer of light from a first optical port to a second optical port, and from the second port to a third. Not only does the employment of such beam splitting devices significantly reducing the dimensions of the optical system it also renders the device simpler to align.