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. 01, 2003
Filed:
Dec. 11, 2000
James T. Murray, Tucson, AZ (US);
William Austin, Tucson, AZ (US);
Lite Cycles, Inc., Tucson, AZ (US);
Abstract
The mode and wavelength of a conventional, multi-mode, wide-stripe laser diode is converted in an Nd ion-doped laser host crystal to a stable, single-mode output that falls within the spectral region required for pumping EDFA amplifying structures. The host crystal absorbs radiation from the diode that corresponds with the I → F absorption band of its Nd ions, and re-radiates into the F → I , F → I , and F → I transitions which release photon energy that can be utilized by amplifying structures doped with Er and/or Yb . The spatial mode of the multimode laser diode is converted to single-mode by enclosing the Nd -doped host laser crystal within a laser cavity that has a fundamental mode size large enough to encircle the spatial extent of the beam emanating from the laser diode.