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:
Jan. 05, 1999
Filed:
Jun. 17, 1997
Applicant:
Inventor:
Richard Thomas Kane, Morristown, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
385127 ; 385126 ; 385128 ;
Abstract
The present applicant has discovered that an optical filter can be made by etching away part of the cladding of a depressed-cladding fiber. The etching produces a section of fiber having a double peak in the index profile. In a low index medium such as air, the remaining cladding portion guides radiation at certain wavelengths. This radiation is extracted from the radiation in the fiber core.