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:
Oct. 30, 2007
Filed:
Aug. 24, 2005
Applicants:
Poh-boon Phua, Singapore, SG;
Erich P. Ippen, Belmont, MA (US);
Inventors:
Poh-Boon Phua, Singapore, SG;
Erich P. Ippen, Belmont, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/00 (2006.01); H04J 14/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A PMD emulator includes at least two polarization phase plates. The rotation matrix of the at two phase plates are varied to reduce the required number of phase-plates without reducing the number of birefringent segments used.