OPTICAL POLARISATION CONTROLLER WITH WAVEGUIDE STRUCTURE

• Main Authors: DAMMANN, HANS, TOLKSDORF, WOLFGANG, DR, RABE, GERT, PROSS, ELKE, ZINKE, MANFRED BRUNO
• Format: Patent
• Language: English; German
• Published: 01.04.1992
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention relates to an optical polarization regulator having a wave-guide structure for converting the polarization state of an optical beam passing through and comprising devices for adjusting the coupling constants K of the TE and TM modes of the optical beam and for adjusting the difference DELTA beta of the propagation constants beta TE and beta TM of these modes. The wave-guide structure is a magnetooptical element (8, 9, 13). The coupling constant K is adjusted by a magnetic field acting upon the wave-guide structure (8, 9, 13) and the difference DELTA beta is adjusted by a mechanical deformation force exerted on the wave-guide structure.