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. 09, 2003
Filed:
Dec. 06, 2000
Applicant:
Inventor:
Terry V Clapp, Herts, GB;
Assignee:
Bookham Technology PLC, Oxfordshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/00 ;
U.S. Cl.
CPC ...
H01S 3/00 ;
Abstract
An optical amplifier is provided from a body , at least part of which is doped with a rare earth such as erbium. At least one waveguide extends through the doped part of the body. Pump light is input on a side face of the body and is distributed in the body over the length of the waveguide . A reflective coating may be provided away from the pump light input, including on the opposite face to the pump light input, to multiply reflect pump light within the body to distribute the pump light within the body. The body may be in the form of a slab.