Vorrichtung und Verfahren zur Steuerung eines Thermooptischen Phasenschiebers

Details

Veröffentlichungs-Nr.

EP4741914

Anmeldetag

11. November 2024

Veröffentlichung

13. Mai 2026

Rechtsraum

EP

Abstract

A device (100) for controlling a thermo-optical phase shifter, TOPS, (202; 302) is provided, said device (100) comprising: a driving circuit (110) providing power to the TOPS (202; 302) by toggling between an on state outputting maximum power and an off state outputting minimum power, wherein a toggling scheme controls an effective power; and a controller (120) generating a modulation signal for controlling the toggling scheme and comprising a pre-distortion module (122) for determining an initial portion of the modulation signal for bringing the temperature of the TOPS (202; 302) from a first level corresponding to a first effective power of the driving circuit (110) to a second level corresponding to a second effective power of the driving circuit (110), wherein the pre-distortion module (122) determines the initial portion based on a non-linear function of the first effective power, the second effective power, and the maximum or minimum power.

Anmelder

Firma

Stichting IMEC Nederland

Land

🇳🇱 Niederlande