Waveguide propagation-loss measurement technique

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1987 English Publisher:Optica Publishing GroupJournal:Optics Letters, volume 12, page 1,047 (issn: 0146-9592, eissn: 1539-4794,

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Authors: R, Arsenault; D, Gregoris; S, Woolven; V M, Ristic;

doi: 10.1364/ol.12.001047

pmid: 19741957

Waveguide propagation-loss measurement technique

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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.

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