FIBRE LASER

WIPO Patent Application WO2002050964

A3

A Fibre-based optical source comprises a high power laser diode stack as a pump source, the output of which is shaped into an intense beam of elongate cross-section by use of focusing and light concentrating elements. The beam is used to cladding pump a fibre having an inner cladding also with elongate cross-section, to provide high efficiency pumping. To achieve high output powers with a good mode quality, an overall large core ara is provided by configuring the fibre to have a plurality of individual cores doped with active ions and arranged within the inner cladding in a linear array. Each individual core is configured for single mode operation, so that a plurality of single mode lasers outputs are generated, which can be combined to produce one single mode high power output. The source may also be configured as a laser or as an amplifier.

JP2701992	[Title of Invention] Optical Transmission System
JP5192692	Broadband optical pulse generator and noise-like pulse generator
JPS5330295	DEVICE HAVING ACTIVE LAYER OF LIGHT TRANSMISSIBLE LASER ON SUBSTRATE

CLARKSON WILLIAM A (GB)
HARWOOD DUNCAN W J (GB)
TURNER PAUL W (GB)

PCT/GB2001/005626

September 04, 2003

December 18, 2001

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UNIV SOUTHAMPTON (GB)
CLARKSON WILLIAM A (GB)
HARWOOD DUNCAN W J (GB)
TURNER PAUL W (GB)

H01S3/06; H01S3/067; H01S3/094; H01S3/10; (IPC1-7): H01S3/0941; H01S3/094

WO1993015536A1

1993-08-05

US5268978A	1993-12-07
US4820010A	1989-04-11
US5859868A	1999-01-12
US5084882A	1992-01-28
US5369661A	1994-11-29
EP1059707A2	2000-12-13

FU R ET AL: "DESIGN OF EFFICIENT LENS DUCTS", APPLIED OPTICS, OPTICAL SOCIETY OF AMERICA,WASHINGTON, US, vol. 37, no. 18, 20 June 1998 (1998-06-20), pages 4000 - 4003, XP000766641, ISSN: 0003-6935

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