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:
Jul. 27, 2010
Filed:
Jun. 26, 2008
Alex Ovtchinnikov, Worcester, MA (US);
Igor Berishev, Holden, MA (US);
Nikolai Strougov, Dudley, MA (US);
Vadim Chuyanov, Oxford, MA (US);
Alex Ovtchinnikov, Worcester, MA (US);
Igor Berishev, Holden, MA (US);
Nikolai Strougov, Dudley, MA (US);
Vadim Chuyanov, Oxford, MA (US);
IPG Photonics Corporation, Oxford, MA (US);
Abstract
A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the optical components each include a lens assembly and a bending mirror configured to couple the beam light into an output fiber which is common to all groups of the optical component. At least one optical component of each group is provided with a dielectric layer capable of preventing propagation of a backreflected light toward laser diodes at a wavelength different from the pump wavelength.