Device and method for frequency stabilization of a laser

Abstract

The present invention relates to a device and a method for frequency stabilization of a laser, in particular to a device and a method for frequency stabilization of a laser based on the spectroscopy of a temperature-stabilized volume Bragg grating (VBG). A device according to the invention for frequency stabilization of a laser (D1, D2) comprises a beam path for injecting laser radiation emitted by the laser (D1, D2) into a frequency-selective element, wherein the frequency-selective element is temperature-controlled, wherein the frequency-selective element is a volume Bragg grating, VBG, (G1) with a plurality of grating structures (E) and, prior to injection of the laser radiation into the VBG (G1) via an input facet, a proportion of the laser radiation is branched off into a reference beam and the proportion of the laser radiation injected into the VBG (G1) forms a measurement beam.

Dependencies are inferred from the claim text.