Print-molding for process for planar waveguides
US6272275A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Jun 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/1221
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for fabricating optical devices for transmission and/or manipulation of light includes steps of providing a substrate which defines a reference plane for positioning cladding material and core material, fixing rigid spacers to an upper surface of the substrate, the spacers having upper surfaces which define a second plane spaced above the reference plane, depositing a layer of a formable, curable under-cladding material over the upper surface of the substrate, the upper surface of the rigid spacers providing a guide for precise control of the height of the under-cladding material above the surface of the substrate, curing the under-cladding material under compression to form an under-cladding layer, and depositing a light guide core and over-cladding on the under-cladding. The method is susceptible to mass production and provides more precise control of the position of the light guide core relative to a substrate surface. The resulting optical device includes a substrate, a pattern of rigid spacers fixed to the upper surface of the substrate, a polymeric under-cladding layer positioned on the substrate and in space defined between the rigid spacers, a polymer light guide c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.