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:
Mar. 26, 2002
Filed:
Jun. 21, 2000
Other;
Abstract
An optical device comprises a substrate, an optical waveguide, a laser diode, photodiodes, and a filter. The substrate is provided with a flat reference surface and a V-groove recessed from the reference surface. A pin is fitted in the V-groove of the device and a V-groove of a connector. The optical waveguide is formed on the reference surface. The optical waveguide is provided with a core and a cladding. The core extends along the reference surface. The laser diode emits a signal light beam with a first wavelength toward the core and the photodiode, individually. The filter transmits the signal light beam with the first wavelength and reflects a signal light beam with a second wavelength. The signal light beam reflected by the filter is received by a photodiode.