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. 02, 1999
Filed:
Oct. 30, 1996
Elias Snitzer, Piscataway, NJ (US);
Rutgers, The State University of New Jersey, New Brunswick, NJ (US);
Abstract
The present invention features a light-pumped, single-mode, pulse- or continuous-wave amplifier, or a Q-switch, with each having a high-saturation output power. The amplifier or Q-switch has a light-pumped, optical fiber having active ions that are either annularly located within the cladding or adjacent the core/cladding interface. Pump-light and an input signal are coupled to the fiber via a dispersive or biconically-tapered coupler. The light-pumped fiber provides stored energy, with an induced emission in the excited-state population that is relatively low for the given amount of energy stored. The central part of the core both stores and propagates whatever light is present, due to induced emission, which takes place only in the annular region. The light that is incident on the fiber is of sufficient intensity so that, despite the low rate of induced emission per unit of light intensity, a significant power increase occurs.