公开(公告)号：US20220260889A1

公开(公告)日：2022-08-18

申请号：US17672390

申请日：2022-02-15

Applicant: Thorlabs, Inc.

Inventor： Reza Salem ,  Peter Fendel ,  Sterling Backus ,  Dongfeng Liu ,  Chenchen Wan

IPC: G02F1/35 ,  G02F1/365 ,  G02F1/355 ,  H01S3/067 ,  H01S3/00

Abstract: A mid-infrared broadband laser including: a femtosecond laser configured to generate a near-infrared light; nonlinear waveguide configured to broaden and/or shift a spectrum of the light from the femtosecond laser; and a nonlinear medium configured to generate a broadband light by mixing spectral components of the output from the non-linear waveguide. Optionally, at least one dispersion compensation element may be placed between the femtosecond laser and the nonlinear waveguide and/or between the nonlinear waveguide and the nonlinear medium.

公开(公告)号：US20240044797A1

公开(公告)日：2024-02-08

申请号：US18228989

申请日：2023-08-01

Applicant: Thorlabs, Inc.

Inventor： Sterling Backus ,  Scott Domingue ,  Matthew Kirchner

IPC: G01N21/64 ,  H01S3/00

CPC classification number: G01N21/6458 ,  H01S3/0057 ,  G01N2201/06113 ,  G01N2201/0696

Abstract: A system and method of producing energetic laser pulses suitable for multi-photon microscopy, in which laser pulses from an ultrafast pump source operating at greater than 40 MHz repetition rate are directed onto an optical cavity, where the pulses build-up to a higher energy inside of that cavity over the period of many pulses. After the intra-cavity pulses achieve sufficient energy, an active element inside of the cavity switches out the enhanced light pulse with a reduced a repetition rate relative to the pump source. The increased pulse energy and reduced repetition rate will enable the pump source, originally designed for two-photon microscopy, to perform new imaging modalities, such as deep, in-vivo, three-photon microscopy.

公开(公告)号：US11815782B2

公开(公告)日：2023-11-14

申请号：US17672390

申请日：2022-02-15

Applicant: Thorlabs, Inc.

Inventor： Reza Salem ,  Peter Fendel ,  Sterling Backus ,  Dongfeng Liu ,  Chenchen Wan

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/365 ,  H01S3/00 ,  H01S3/067

CPC classification number: G02F1/3507 ,  G02F1/3503 ,  G02F1/3528 ,  G02F1/3548 ,  G02F1/3551 ,  G02F1/365 ,  H01S3/0092 ,  H01S3/06716 ,  G02F2203/11

Abstract: A mid-infrared broadband laser including: a femtosecond laser configured to generate a near-infrared light; nonlinear waveguide configured to broaden and/or shift a spectrum of the light from the femtosecond laser; and a nonlinear medium configured to generate a broadband light by mixing spectral components of the output from the non-linear waveguide. Optionally, at least one dispersion compensation element may be placed between the femtosecond laser and the nonlinear waveguide and/or between the nonlinear waveguide and the nonlinear medium.