Wavelength selective optical cavity including holographic filter layers
US4759596A · kind A · utility
28Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1984 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Aug 30, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29337
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical resonant cavity adapted to receive, as an input from a transmission trunk line, a group of optical signals distributed in wavelength over a predetermined band and to provide, as an output, a narrower band of the optical signals. The wavelength selective nature of the cavity stems from a modification of its resonant modes with periodic structures that are interferometrically formed as alternating layers of high and low index of refraction in photopolymeric material at its opposite ends and operate to suppress resonant modes at wavelengths outside of the narrow band desired as an output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.