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:
Sep. 22, 1998
Filed:
Feb. 11, 1997
Fujitsu Limited, Kawasaki, JP;
Abstract
An apparatus, such as an optical modulator, which includes an optical waveguide and a polarizer housing device. The optical waveguide has an input end to receive light, and the polarizer housing device is connected to the input end of the optical waveguide. The polarizer housing device includes a polarizer which polarizes light, and a lens. A propagation space is in the polarizer housing device between the polarizer and the lens. The light polarized by the polarizer travels through the propagation space to the lens and is guided by the lens to the input end of the optical waveguide. The polarizer is bonded to the polarizer housing device with an adhesive so that no excess adhesive flows into the propagation space. Therefore, it is not necessary to use an optical adhesive to bond the polarizer to the polarizer housing device.