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:
Mar. 10, 2009
Filed:
Jul. 28, 2004
Malcolm Paul Varnham, Alresford, GB;
Mikhail Nicholaos Zervas, Southampton, GB;
David Neil Payne, Southampton, GB;
Lars Johan Albinsson Nilsson, Southampton, GB;
Malcolm Paul Varnham, Alresford, GB;
Mikhail Nicholaos Zervas, Southampton, GB;
David Neil Payne, Southampton, GB;
Lars Johan Albinsson Nilsson, Southampton, GB;
SPI Lasers UK Limited, Southampton, GB;
Abstract
Apparatus for providing optical radiation includes a pump source and at least one first amplifying waveguide. The first amplifying waveguide emits optical radiation in excess of 1400 nm when pumped by the pump source. In one embodiment, the pump source can include a plurality of laser diodes and a plurality of second amplifying waveguides. In this arrangement the first amplifying waveguide is pumped by the second amplifying waveguides, the second amplifying waveguides are pumped by the laser diodes, and the second amplifying waveguides are configured to improve the beam quality of radiation emitted by the laser diodes.