Waveguide propagation-loss measurement technique.
A novel nondestructive propagation-loss measurement technique for single-mode waveguides is demonstrated. The method calculates the total propagation-loss coefficient from the measured ratio of the retroreflected and transmitted light from the waveguide and is independent of the coupling efficiency of the input light. A surface-wave transducer is utilized as an acousto-optic modulator in a lock-in scheme to enhance the measurement ease and precision.
Arsenault
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R
Gregoris
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Woolven
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Ristic
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