Low quantum defect holmium fiber laser

Details Low quantum defect holmium fiber laser Low quantum defect holmium fiber laser

2007-01-30

2007-01-30

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Optical fiber laser

Reexamination Certificate

active

10853352

ABSTRACT:
A directly pumped, un-sensitized, holmium, quasi-two level fiber laser is disclosed that is doped with Holmium active ions between 0.1 and 2.0 percent by atomic weight. This yields greater energy efficiency from the laser because up-conversion losses are minimized, mismatches created by sensitizer ions are eliminated by having no sensitizer ions, and thermal loading of the fiber medium of the laser is thereby reduced. In addition, the pump ratio of the fiber laser is 0.9 which yields a very low quantum defect. The low doping percentage of holmium active ions also eliminates any absorption of its own energy because the power of the diode pumping source is sufficient to cause the laser to reach transparency.

REFERENCES:
patent: 5036520 (1991-07-01), Bowman et al.
patent: 5287378 (1994-02-01), Bowman et al.
patent: 5299210 (1994-03-01), Snitzer et al.
patent: 6373863 (2002-04-01), Ohishi et al.
patent: 6583927 (2003-06-01), Choi et al.
patent: 6631234 (2003-10-01), Russell et al.
patent: 2004/0057105 (2004-03-01), Choi et al.
patent: 2004/0156606 (2004-08-01), Po
PCT International Search Report dated May 30, 2006 of International Application No. PCT/US05/18048 filed May 23, 2005.

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