US 8,412,009 B2Granted

Optical fiber contact

OwnerSven-Olov Roos, Ola Blomster +1inventors

InventorsSven-Olov Roos, Ola Blomster, Thomas Uhrwing

Life of this patent

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Abstract

An optical fiber contact for transmitting moderate-magnitude optical power. The fiber contact includes an optical fiber having an inner core and a surrounding cladding for transmitting the radiation in the core. Additional surrounding layers including so-called buffer and jackets mechanically stabilize the optical fiber. The forward part of the optical fiber contact is surrounded by a transparent tubular member. The tubular member extends a certain length along the outer cylindrical surface of the cladding. There is no heating by power loss radiation, as the power loss radiation is leaving the contact as optical radiation. To disperse radiation propagating within the cladding, the cladding includes a roughening or additional layers of a transparent material. In case of additional layers of transparent material then the outermost layer should be roughened.

Claims12

Dependent claims

An optical fiber contact for transmitting moderate-magnitude optical power, the optical fiber contact comprising:

an optical fiber comprising
an inner core,
a cladding surrounding the inner core for transmitting the radiation within the core, the cladding having an outer cylindrical surface, and
additional layers surrounding the cladding to mechanically stabilize the optical fiber,
a transparent tubular member surrounding a forward part of the optical fiber contact, wherein the transparent tubular member extends a portion of a length along the outer cylindrical surface of the cladding, and
a mode stripper applied to the cladding to disperse radiation propagating within the cladding,
wherein the transparent tubular member and the optical fiber are fused together at a front end of the forward part of the contact forming a mechanical structure, and wherein at least a portion of the cylindrical surfaces of the transparent tubular member is roughened.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/679,589Filed 19 Sep 2008
Priority: SE 070212525 Sep 2007
Published: US 2010/0195957 A15 Aug 2010
Granted: 2 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

G02B 6/3813
Of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres: for transmission of high energy beam
G02B 6/02052
Optical fibres with cladding with or without a coating: comprising optical elements other than gratings, e.g. filters
G02B
Optical elements, systems or apparatus