Accession Number : ADD004611

Title :   Method of Fabricating Low-Loss Channel Optical Waveguides.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Pavlopoulos,Theodore G

Report Date : 10 May 1977

Pagination or Media Count : 5

Abstract : A material is selected which is capable of propagating light energy and is also highly absorptive of light energy within a determinable wavelength region. A laser beam which includes such wavelength region in its output energy is focused on the surface of the selected material in a sufficient concentration to cause partial evaporation of its surface and relative linear movement is given effect between the laser beam focal point and the selected material in a focal plane of the laser beam. The rate of such relative linear movement is controlled to produce grooves in the surface of the selector material by absorption of laser energy, thereby defining optical waveguide guiding paths immediately beneath the grooves due to localized change of index of refraction. (Author)

Descriptors :   *Patents, *Optical waveguides, Low loss, Channels, Laser beams, Refractive index

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE