Efficient Cr,Nd:Gd3Sc2Ga3O12 laser at 1.06 μm pumped by visible GaInP/AlGaInP laser diodes
- 9 September 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (11) , 1287-1289
- https://doi.org/10.1063/1.105477
Abstract
The 1.06 μm Nd transition in co‐doped Cr,Nd:Gd3Sc2Ga3O12 (Cr,Nd:GSGG) is obtained by diode pumping Cr3+ at 670 nm and is shown to produce efficient, low‐threshold laser operation. Both cw and long‐pulse diode pumping were demonstrated, with pump power levels as high as 300 mW cw and 1 W pulsed. The lowest threshold power measured was 938 μW, and the highest output power obtained was 43 mW cw and 173 mW pulsed. The best slope efficiency obtained was 42.1%, 78% of the theoretical maximum. Loss measurements indicate a value of 0.4% cm−1.Keywords
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