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:
Apr. 22, 2014
Filed:
May. 31, 2012
Applicants:
Shinobu Tamaoki, Yokohama, JP;
Motoki Kakui, Yokohama, JP;
Inventors:
Shinobu Tamaoki, Yokohama, JP;
Motoki Kakui, Yokohama, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/26 (2006.01); G02B 6/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a light source apparatus. The light source apparatus has an MOPA configuration and comprises a seed light source, a pulse generator, an intermediate optical amplifier, a final stage optical amplifier, a delivery optical fiber, and a light output terminal. The delivery optical fiber is a PBG fiber having a photonic bandgap (PBG) structure in a core-surrounding portion located around the core. Light with a wavelength in a high loss band of the PBG fiber is inputted into the PBG fiber.