Patent · US Expired

Method for the mechanical stabilization and for tuning a filter having a photonic crystal structure

US5973823A · kind A · utility

30Cited by

11References

16Claims

0Family size

Assignee

DEUTSCHE TELEKOM AG · DE

Inventors

Hans Koops · Ober-Ramstadt, DE
Wolfgang Dultz · Frankfurt am Main, DE
Manfred Eich · Frankfurt am Main, DE

Key dates

Filing date	Jul 22, 1997
Grant date	Oct 26, 1999
Priority date	—
Expiry date	Jul 22, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG02F2202/32
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for mechanically stabilizing and for tuning a filter having a photonic crystal structure The cavities of the filter fabricated as a photonic crystal structure are filled with optically transparent material having an adjustable refractive index. The optical properties of the filter and, thus, the filtering action are adjusted by way of an electric field having a variable field strength. It is possible to produce small-dimensioned, narrow-band filter elements, which are finely tunable and tunable within a broad range, and to realize them as filter elements which are integrated with a high packaging density.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.