New crystalline material for 1.5 μm lasers : Yb,Er - Activated GdCa 4O(BO3)3

• A new crystalline medium for 1.5 μm Yb-Er lasers is proposed: GdCa 4O(BO3)3 (GdCOB). Its melting point allows crystal growth using platinum instead of iridium crucibles. Spectroscopic and laser tests of the new material are described. A maximum CW output power of 80 mW was achieved in a monolithic microchip cavity under laser diode pumping.

Ämnesord

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Nyckelord

Crystal growth

Crystalline materials

Erbium

Gadolinium compounds

Glass

Melting

Platinum

Pumping (laser)

Semiconductor lasers

Spectroscopic analysis

Ytterbium

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