Measurement of SAW attenuation on metals Appl. Phys. Lett. 33, 981 (1978); 10.1063/1.90260 Experimental properties of injection lasers. VI. Mode powering in narrow−stripe and wide sawed lasers

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The surface acoustic wave (SAW) properties of berlinite (a-A1PO ) have been measured for 4 three cuts along the x-axis boule orientation. The SAW velocity, piezoelectric coupling and temperature coefficient of delay were determined. The SAW velocities were measured by the impulse response technique and found to be about 2740 m/sec which is in good agreement with theory. The piezoelectric coupling was measured by means of the single transducer and phase methods and found to be about .13%. This value is considerably less than the theoretical value. The temperature coefficient of time delay was measured by the oscillator method over a temperature range of O°C to 6OoC. The temperature for which the derivative of the delay time becomes zero was deteniiined for each cut.

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