Wavelength multiplexer-demultiplexer corrected of geometric and chromatic aberrations
US4819224A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1986 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Mar 20, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2938
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Multiplexer-demultiplexer including: PA1 (a) a fiber-carrying element in which the entrance and exit fibers are embedded, with their ends in flush alignment in a plane surface of contact with the following element, PA1 (b) an element carrying the wavelength separation system, with a plane surface of contact with the fiber-carrying element and an opposite plane face of contact with the following element, PA1 (c) an intermediate element of the same index n as the element carrying the wavelength separation system, with a plane face of contact with the element carrying the wavelength separation system, and a spherical face of contact with the following element, PA1 (d) a mirror element with a spherical face of contact with the intermediate element and an opposite spherical face treated to form a concave spherical mirror towards the intermediate element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.