HOLLOW CORE WAVEGUIDE FOR LASER GENERATION OF ULTRASONIC WAVES

摘要

HOLLOW CORE WAVEGUIDE FOR LASER GENERATION OF ULTRASONIC WAVESAbstractA laser transmission system for an ultrasonic workpiece detection system operating in the wavelength range between 3um and 5um. The system comprises a source (102) coupled via a first lens assembly (104) and first hollow core waveguide to an optical fibre (108). The system optical exit comprises a further hollow core waveguide (110) coupling the optical fibre to an exit lens assembly (112).Figure 1