Multilevel laser medium has layer that is made of laser material, which is excited to stimulate emission on laser wavelength, and has another layer that is made of absorber material that works to abso
The multilevel laser medium has a layer (3) that is made of a laser material, which is excited to stimulate emission on a laser wavelength, and has another layer (1) that is made of an absorber material that works to absorb the same wavelength. The two layers are optically coupled together directly or over an intermediate layer (2). The entire layer structure has five-angular form, and extends perpendicularly to the cross section over a desired length. An independent claim is included for gadolinium scandium aluminum garnet crystal.
WITTROCK ULRICH [DE]; PETERMANN KLAUS [DE]
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