Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2007-06-08
2009-12-15
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C372S069000, C372S071000, C372S075000
Reexamination Certificate
active
07633990
ABSTRACT:
A method for increasing the efficiency of generating lasers by pumping two separate wavelengths into an erbium-based medium to populate the4I11/2state and depopulate the4I13/2state. A first excitation wavelength region is located between approximately 955 nm to approximately 1100 nm. The second excitation wavelength region is located between approximately 1600 nm to approximately 1850 nm. This multi-wavelength pumping scheme may be operated in continuous wave or quasi-continuous wave mode.
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Cislo & Thomas LLP
Harvey Minsun
Roy Tod T Van
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