公开(公告)号：US12130136B2

公开(公告)日：2024-10-29

申请号：US17707479

申请日：2022-03-29

Applicant: Thorlabs, Inc.

Inventor： Oliver Heckl ,  Jakob Fellinger

IPC: G01S17/34 ,  G01B9/02001 ,  G01J3/433 ,  G01J3/45 ,  G01J3/457 ,  G01S7/48 ,  G01S7/497 ,  G01S17/894 ,  G01J3/28 ,  G01J3/42

CPC classification number: G01B9/02008 ,  G01J3/433 ,  G01J3/45 ,  G01J3/457 ,  G01S7/4808 ,  G01S7/497 ,  G01S17/34 ,  G01S17/894 ,  G01J2003/2879 ,  G01J2003/423 ,  G01J2003/4332

Abstract: A device that uses two intensity modulated frequency combs to measure distances with high precision and high data acquisition rate without any moving parts and without length ambiguity that is inherent conventional ranging based on two frequency combs. A modulation signal having a repetition rate identical to the repetition rate difference between the two combs is used to do a direct time-of-flight length measurement, hence avoiding the given length ambiguity while harvesting the increased precision of the dual-comb approach.

公开(公告)号：US20220316855A1

公开(公告)日：2022-10-06

申请号：US17707479

申请日：2022-03-29

Applicant: Thorlabs, Inc.

Inventor： Oliver Heckl ,  Jakob Fellinger

IPC: G01B9/02001 ,  G01J3/45 ,  G01J3/457 ,  G01J3/433 ,  G01S17/34 ,  G01S17/894 ,  G01S7/48 ,  G01S7/497

Abstract: A device that uses two intensity modulated frequency combs to measure distances with high precision and high data acquisition rate without any moving parts and without length ambiguity that is inherent conventional ranging based on two frequency combs. A modulation signal having a repetition rate identical to the repetition rate difference between the two combs is used to do a direct time-of-flight length measurement, hence avoiding the given length ambiguity while harvesting the increased precision of the dual-comb approach.

公开(公告)号：US10965088B2

公开(公告)日：2021-03-30

申请号：US16296586

申请日：2019-03-08

Applicant: Thorlabs, Inc.

Inventor： Oliver H. Heckl ,  Georg Winkler ,  Jakob Fellinger

IPC: H01S3/098 ,  H01S3/08 ,  H01S3/067 ,  H01S3/10 ,  H01S3/11 ,  H01S3/13 ,  H01S3/16

Abstract: A method for generating a single-cavity dualcomb or multicomb for laser spectroscopy, the method comprising the steps of providing a laser system comprising a pump source, a gain medium, and a resonator having a spectral filter; spectrally filtering, by the spectral filter, light in the resonator and attenuating, in particular blocking, by the spectral filter, one or more wavelength bands at least one of which being located completely within the gain bandwidth of the laser system such that two or more at least partially separated spectral regions are provided; mode-locking the two or more at least partially separated spectral regions.