Abstract
The aim of this project is the development of a new endoscopic applicator that would enable surgeons to use laser and ultrasound techniques simultaneously. The concept of the applicator is based on the transmission of laser radiation and ultrasound power via flexible silica glass fibers. Flexible acoustic waveguides are not yet available commercially. Experimental studies have shown the possibility of transmission of acoustical transients via optical silica glass fibers. Theoretical and experimental results on the feasibility of such a fiber for an ultrasonic power delivery system are presented. The system transmits via an 1.5 m long optical fiber (outside diameter: 1 mm) up to 100 watts Nd:YAG laser radiation. The axial oscillation of the fiber tip (elongation) is /spl plusmn/70 pm at a frequency of 22 kHz.
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