Patent · US Active

Method for controlling the emission frequency of a laser

US10862267B2 · kind B2 · utility

0Cited by

1References

10Claims

0Family size

Assignee

HUMEDICS GMBH · DE

Inventors

Axel Luchterhand · Berlin, DE
Alexander Helmke · Berlin, DE
Tom Rubin · Berlin, DE
Karsten Heyne · Isny im Allgäu, DE

Key dates

Filing date	May 19, 2017
Grant date	Dec 8, 2020
Priority date	—
Expiry date	Jul 18, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/02415
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method for controlling the emission frequency of a laser comprises: recording a first spectrum by passing a laser light emitted by the laser through a sample onto a detector, the detector being connected to a multichannel analyzer which assigns pulses detected by the detector to a channel; determining a first channel to which the maximum of a first signal in the first spectrum has been assigned; determining a second channel to which the maximum of a second signal in the first spectrum has been assigned; recording a second spectrum in analog fashion like the first spectrum; determining whether the maximum of the first signal in the second spectrum has been assigned to the first channel and whether the maximum of the second signal in the second spectrum has been assigned to the second channel; adjusting the operating temperature of the laser in the event of deviations determined in the previous step.

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