Coherent light generators – Particular active media – Amorphous
Reexamination Certificate
2007-11-20
2007-11-20
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular active media
Amorphous
C372S006000
Reexamination Certificate
active
10990869
ABSTRACT:
A heavy metal oxide glass selected from germanate, tellurite and bismuth oxide glasses provides a host for highly efficient Thulium doped 2 μm oxide glass and fiber lasers. The concentration of Thulium ions is high enough that energy transferred by the phenomenon of cross-relaxation will enhance laser emission at 2 μm and suppress emission at 1.5 μm so that 2 μm emission is dominant.
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Gifford Eric A.
Harvey Minsun Oh
Nguyen Tuan N.
NP Photonics, Inc
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