Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Knowledge of optimal conditions for laser generation of ultrasonic waves, as well as of the spatial and temporal parameters of the generated ultrasonic beams, is required for effective application of laser-based ultrasonic (LBU) techniques to NDE [1]. The work presented here employs a fiberized Sagnac interferometer to characterize a fiber-array based LBU system. The combined system can remotely generate and detect ultrasonic signals with energy concentrated within a selected narrow frequency band.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 2: Emerging Technologies

Section

Laser/Optical Ultrasonics

Pages

675-681

DOI

10.1007/978-1-4615-5339-7_87

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Characterization of Laser Ultrasonic Sources Using a Sagnac Interferometer

La Jolla, CA

Knowledge of optimal conditions for laser generation of ultrasonic waves, as well as of the spatial and temporal parameters of the generated ultrasonic beams, is required for effective application of laser-based ultrasonic (LBU) techniques to NDE [1]. The work presented here employs a fiberized Sagnac interferometer to characterize a fiber-array based LBU system. The combined system can remotely generate and detect ultrasonic signals with energy concentrated within a selected narrow frequency band.