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Title: Apparatus for injecting high power laser light into a fiber optic cable

High intensity laser light is evenly injected into an optical fiber by the combination of a converging lens and a multisegment kinoform (binary optical element). The segments preferably have multi-order gratings on each which are aligned parallel to a radial line emanating from the center of the kinoform and pass through the center of the element. The grating in each segment causes circumferential (lateral) dispersion of the light, thereby avoiding detrimental concentration of light energy within the optical fiber.
  1. (Albuquerque, NM)
Issue Date:
OSTI Identifier:
Sandia Corporation (Albuquerque, NM) SNL
Patent Number(s):
US 5687264
Contract Number:
Research Org:
Country of Publication:
United States
apparatus; injecting; power; laser; light; fiber; optic; cable; intensity; injected; optical; combination; converging; lens; multisegment; kinoform; binary; element; segments; preferably; multi-order; gratings; aligned; parallel; radial; line; emanating; center; pass; grating; segment; causes; circumferential; lateral; dispersion; avoiding; detrimental; concentration; energy; light energy; optical element; fiber optic; optical fiber; laser light; optic cable; power laser; converging lens; intensity laser; aligned parallel; binary optical; /385/359/