title: Waveguide propagation-loss measurement technique.
abstract: 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.
authors.forename: R
authors.initials: R
authors.lastname: Arsenault
authors.forename: D
authors.initials: D
authors.lastname: Gregoris
authors.forename: S
authors.initials: S
authors.lastname: Woolven
authors.forename: V M
authors.initials: VM
authors.lastname: Ristic