Reverse oxidation post-growth process for tailored gain...

Details Reverse oxidation post-growth process for tailored gain... Reverse oxidation post-growth process for tailored gain...

2006-10-20

2009-12-15

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

C372S041000, C372S006000

Reexamination Certificate

active

07633981

ABSTRACT:
A laser rod is provided having a tailored gain profile such that the quality of the output beam is enhanced. The laser rod has a concentration of active substitutional ions that is relatively high at the center of the rod and decreases to the surface of the rod. The laser rod further has a concentration of pre-active laser ions that is relatively high at the surface of the rod and decreases to the center of the rod. Methods are disclosed for creating a layer of inactive laser species in the near surface region of a laser rod using substitutional dopant ions and for creating a laser rod with a tailored gain profile such that the quality of the output beam is enhanced.

REFERENCES:
patent: 6891878 (2005-05-01), Spariosu et al.
patent: 6996136 (2006-02-01), Bryen et al.
patent: 6996137 (2006-02-01), Byren et al.
patent: 2007/0242714 (2007-10-01), Sumida et al.
Krey, M. & Becker, K, “An Optical In-Situ Study Of The Re-Oxidation Kenetics Of Mixed Valent Yb3al5o12”, Phys. Chem. Chem. Phys. 5, 2283-2290 (2003).

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