Patent · US Expired

Selective optical resonator

US4305046A · kind A · utility

46Cited by

7References

4Claims

0Family size

Assignee

Agence Nationale de Valorisation de la Recherche · FR

Inventors

Albert Le Floch · Rennes, FR
Roger Le Naour · Orvault, FR

Key dates

Filing date	Jul 5, 1979
Grant date	Dec 8, 1981
Priority date	—
Expiry date	Jul 5, 1999

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/13
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Selective optical resonator comprising at least two mirrors and a selective means disposed between two of these mirrors, said means being constituted by: PA1 an at least partial linear polarization means for the light in a direction P, PA1 a first birefringent plate having two neutral lines, one forming an angle .alpha..sub.1 =0 with direction P, PA1 an optically active substance having a birefringence with dispersion and which rotates the light polarization direction by an angle .theta. dependent on the wavelength of the .lambda. light, PA1 a second plate which is identical to the first having two neutral lines, one forming the angle .alpha..sub.2 =.theta. with the direction P, whereby the resonator is then selective for said wavelength .lambda..

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