Optical waveguides – With optical coupler – Particular coupling function
Patent
1998-09-30
2000-05-16
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Particular coupling function
385 28, 385147, G02B 626
Patent
active
06064785&
ABSTRACT:
An optical wave guide path recording medium includes an optical wave guide path recording layer including an optical wave guide path and an input light coupling portion for introducing a light beam, the optical wave guide path having a plurality of refractive index discontinuous portions arranged thereon, wherein at least one of a shape and a relative distance of the refractive index discontinuous portions is formed based on information to be recorded; and a light transmitting elastic body layer disposed apart from the optical wave guide path recording layer at such a distance that when the refractive index discontinuous portions generate a reflected wave guide light after the light beam is introduced into the optical wave guide path, evanescent wave coupling of the reflected wave guide light is induced with the optical wave guide path recording layer and the reflected wave guide light is transmitted to the light transmitting elastic body layer, the light transmitting elastic body layer having an output light coupling portion for outputting the reflected wave guide light.
Palmer Phan T. H.
Pioneer Electronic Corporation
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