Hollow core waveguide for laser generation of ultrasonic waves

Details Hollow core waveguide for laser generation of ultrasonic waves Hollow core waveguide for laser generation of ultrasonic waves

2008-05-15

2010-06-08

Font, Frank G (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S031000, C385S033000, C073S643000, C073S649000, C073S570000, C073S618000, C073S620000

Reexamination Certificate

active

07734133

ABSTRACT:
A laser transmission system is used for inspecting workpieces. The system has a source of laser beams that is coupled to a first lens assembly. A first hollow core waveguide is operably coupled to the first lens assembly. An end of an optical fiber coupled to the first hollow core waveguide. A second hollow core waveguide is coupled to the other end of the optical fiber. A second lens assembly operably coupled to the second hollow core waveguide. The length of the hollow core waveguides range from about 5 to 100 times the focal lengths of the lens assemblies. A motion control system is operably coupled to the second hollow core waveguide and the second lens assembly for controllably displacing the second hollow core waveguide and the second lens assembly with respect to a workpiece.

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International Search Report and Written Opinion for PCT/US/2009/043997 dated Nov. 18, 2009, 13 pages.

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