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:
Dec. 19, 2000
Filed:
Jun. 17, 1998
Applicant:
Inventors:
Hidenori Kawanishi, Nara, JP;
Atsushi Shimonaka, Yamatokoriyama, JP;
Assignee:
Sharp Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 14 ; 385 50 ; 385132 ; 372 50 ;
Abstract
The waveguide type optical integrated circuit element of this invention includes: a semiconductor laser of an end face output type; and an optical waveguide for propagating output light from the semiconductor laser, the optical waveguide including a plurality of semiconductor layers, the semiconductor laser and the optical waveguide being integrally formed side by side on a semiconductor substrate, wherein a single semiconductor layer is buried in an interface area between the semiconductor laser and the optical waveguide.