Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2011-05-31
2011-05-31
Group, Karl E (Department: 1731)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S064000, C252S30140R, C252S30140F, C372S040000
Reexamination Certificate
active
07951735
ABSTRACT:
This invention relates to the use of novel glass materials comprising rare earth aluminate glasses (REA1™ glasses) in the gain medium of solid state laser devices that produce light at infrared wavelengths, typically in the range 1000 to 3000 nm and for infrared optics with transmission to approximately 5000 nm in thin sections. The novel glass materials provide stable hosts for trivalent ytterbium (Yb3+) ions and other optically active species or combinations of optically active species that exhibit fluorescence and that can be optically excited by the application of light. The glass gain medium can be configured as a waveguide or placed in an external laser cavity, or otherwise arranged to achieve gain in the laser waveband and so produce laser action.
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Hampton Daniel Scott
Nordine Paul C.
Tangeman Jean Ann
Weber J.K. Richard
3M Innovative Properties Company
Allen Gregory D.
Bolden Elizabeth A
Group Karl E
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