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. 31, 2006
Filed:
Sep. 16, 2002
Anthony Garito, Radnor, PA (US);
Renyuan Gao, Wayne, PA (US);
Renfeng Gao, Phoenixville, PA (US);
Yu-ling Hsiao, Collegeville, PA (US);
Kazuya Takayama, Phoenixville, PA (US);
Aydin Yeniay, Wayne, PA (US);
Anthony Garito, Radnor, PA (US);
Renyuan Gao, Wayne, PA (US);
Renfeng Gao, Phoenixville, PA (US);
Yu-Ling Hsiao, Collegeville, PA (US);
Kazuya Takayama, Phoenixville, PA (US);
Aydin Yeniay, Wayne, PA (US);
Photon X, LLC, Malvern, PA (US);
Abstract
A planar optical waveguide is provided. The planar optical waveguide includes a polymer substrate having a coefficient of thermal expansion, a first cladding disposed on the substrate, and a core disposed on at least a portion of the first cladding. The core is a halogenated polymer having an absorptive optical loss of less than approximately 2.5×10dB/cm in the range from about 1250 to 1700 nm. The core has a thermo-optic coefficient and a refractive index, a product of the thermo-optic coefficient and the reciprocal of the refractive index being approximately equal to the negative of the coefficient of thermal expansion.