Laser beam coupling arrangement
US3975082A · kind A · utility
36Cited by
0References
7Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 23, 1975 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Jul 23, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q3/526
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser beam coupling arrangement for wide-band optical data switching systems, consisting of an electronically controllable, optical mask, a hologram, a waveguide matrix and a coherent light source employs dynamic hologram recording in which a sandwich structure is provided for hologram recording and comprises a transparent electrode, a photo-resistor layer, a dielectric reflector, electro-optical or electro-plastic material and a transparent counter-electrode between the controllable, optical mask and the inputs and outputs of the waveguides which are to be coupled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.