Vorrichtung und Verfahren zur Optischen Phasenabstimmung

Details

Veröffentlichungs-Nr.

EP4733833

Anmeldetag

25. Oktober 2024

Veröffentlichung

29. April 2026

Rechtsraum

EP

Abstract

An optical phase tuning device (1) is provided that comprises a beam splitter (3), a tunable gradient phase shifter (4) and a controller (6) for providing a single drive signal (Iheat) for resistively heating the resistive heating elements. The beam splitter (3) is configured to split a coherent optical beam into a series of individual coherent beams. The tunable gradient phase shifter (4) has a corresponding series of thermo-optical phase shifters (4b, 4c, 4d, 4e), each of which is configured to apply a respective phase shift to a respective one of the individual coherent beams. The thermo-optic phase shifters each comprise a respective resistive heating element (5b, 5c, 5d, 5e) having a mutually different width. The controller (6) provides a single drive signal (Iheat) for resistively heating the resistive heating elements. Therewith a respective phase shift is imposed to each of the individual coherent beams that is substantially inversely proportional to the squared width of the respective resistive heating elements.

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Firma

Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO

Land

🇳🇱 Niederlande