A Study of Interaction of Ultrasonic and Optical Wave in Optical Fiber Using the Air Gap

Abstract

There exist some possibilities for simultaneous delivery of laser radiation and ultrasounds of low frequency and high intensity: introducing ultrasound oscillations in the optical fiber by the rigid connection of the fiber to the vibrating element and non-contact influence of the ultrasonic wave on the laser beam. The article presents the results of Matlab simulations and experimental studies of influence of the ultrasonic wave on the laser beam. A role of the air gap, and its influence on laserultrasonic transmission in optical fiber was examined. Advantages and disadvantages of both solutions of interaction of ultrasonic and optical waves in, e.g., surgical applications are discussed.

Non-Contact Interaction of Ultrasonic Wave on Laser Beam

“…For air-gap length over 80 µm ultrasonic signal loss is acceptable. The obtained results will serve as material for further research related to the earlier works [1][2][3][4][5]20] referred to the analysis of the possibilities of simultaneous transmission of laser radiation and ultrasonic waves in optical fibers.…”

“…There are some possibilities of using laser radiation and low frequency, high intensity ultrasounds simultaneously: introducing ultrasound oscillations in the optical fiber by the stiff fixing it to a vibrating element [1][2][3][4][5] and non-contact influence of the ultrasonic wave on the laser beam. Literature [6][7][8][9][10] provides descriptions of the use of non-contact interaction.…”