Shepherd, D.P., Brown, C.T.A., Warburton, T.J., Hanna, D.C. and Tropper, A.C.
A diode-pumped, high gain, planar waveguide, Nd:Y3Al5O12 amplifier
Applied Physics Letters, 71, (7), . (doi:10.1063/1.119675).
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We report the use of a 5 mm long planar Nd:YAG waveguide grown by liquid-phase epitaxy as an amplifier at 1.064 µm. In a double-pass configuration pumped by a 1.2 W diode-laser, small signal gains of 686 (28 dB) have been observed and efficient power extraction demonstrated with output powers of up to 290 mW being obtained
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