Grating Formation in BGG3l Glass by UV Exposure
OSTP Journal Article
California Institute of Technology Pasadena United States
Pagination or Media Count:
A three-dimensional index variation grating in bulk BGG31 glasswritten using neither hydrogen loading nor germanium doping isdemonstrated. This material is useful for fabricating ionexchangedwaveguides, and its photascnsitivity to ultraviolet LTVradiation at 248nm has not bcen previously explond. Intensitymeasnrcments of the Bragg diffracted spots indicated a milximumindex variation delta n of approximately 4 X 10-5.
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