Ultrafast laser sources and method

Patent metadata

Field	Value
Publication number	US-12567712-B2
Application number	US-202118000545-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Jun 9, 2020
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

There is provided an ultrafast laser source and a method for fabrication thereof, the system comprising a waveguide module and a compression module, wherein the waveguide module generates pulses of multidimensional solitary states from ultra-short-laser pulses and the compression module compresses the pulses of multidimensional solitary states at the output of the waveguide module, the method comprising generating pulses of multidimensional solitary states from ultrashort laser pulses; and compressing the pulses of multidimensional solitary states.

First claim

The invention claimed is:

1 . An ultrafast laser source, comprising:
a waveguide module selected as a hollow core waveguide of a core diameter of at least a wavelength of ultrashort laser pulses; and a compression module; wherein said waveguide module generates pulses of multidimensional solitary states from ultrashort-laser pulses and said compression module compresses the pulses of multidimensional solitary states at the output of the waveguide module.

2 . The ultrafast laser source of claim 1 , wherein said core diameter of the hollow waveguide is comprised in a range between 50 microns and 1 mm.

3 . The ultrafast laser source of claim 1 , wherein one of: rod hollow core fibers, stretched hollow core fibers, hollow core photonics crystal fibers and planar hollow waveguides.

4 . The ultrafast laser source of claim 1 , wherein said compression module comprises one of: a gas and a glass.

5 . The ultrafast laser source of claim 1 , comprising a power scaling module, said power scaling module controlling the chirp of the ultrashort laser pulses.

6 . The ultrafast laser source of claim 1 , comprising a power scaling module, said power scaling module controlling the chirp of the ultrashort laser pulses using at least one of: gratings, prisms, pulse shapers, deformable mirrors, wave shapers and chirped mirrors.

7 . The ultrafast laser source of claim 1 , comprising a spatial coupling module, said spatial coupling module controlling spatial coupling of ultrashort laser pulses to said waveguide module.

8 . The ultrafast laser source of claim 1 , comprising a spatial coupling module, said spatial coupling module controlling spatial coupling of the ultrashort laser pulses to said waveguide module using one of: focusing elements, spatial light modulators and deformable mirrors.

9 . The ultrafast laser source of claim 1 , wherein the ultrashort laser pulses have a pulse duration of at most 100 picoseconds and a pulse energy of at least 1 microjoule.

10 . A method for generating high intensity ultrafast pulses, comprising generating pulses of multidimensional solitary states from ultrashort laser pulses in a hollow core waveguide of a core diameter of at least a wavelength of the ultrashort laser pulses; and compressing the pulses of multidimensional solitary states.

11 . The method of claim 10 , wherein the core diameter of the hollow waveguide is comprised in a range between 50 microns and 10 mm.

12 . The method of claim 10 , wherein the core diameter of the hollow is comprised in a range between 50 microns and 1 mm.

13 . The method of claim 10 , the waveguide being one of: rod hollow core fibers, stretched hollow core fibers, hollow core photonics crystal fibers and planar hollow waveguides.

14 . The method of claim 10 , comprising compressing the pulses of multidimensional solitary states using one of: a gas and a glass.

15 . The method of claim 10 , comprising controlling the chirp of the ultrashort laser pulses.

16 . The method of claim 10 , comprising controlling the chirp of ultrashort laser pulses using at least one of: gratings, prisms, pulse shapers, deformable mirrors, wave shapers and chirped mirrors.

17 . The method of claim 10 , comprising controlling spatial coupling of the ultrashort lasers to the hollow core waveguide.

18 . The method of claim 10 , wherein the ultrashort laser pulses have a pulse duration of at most 100 picoseconds and a pulse energy of at least 1 microjoule.

Assignees

• Inst Nat Rech Scient

Inventors

• Légaré François
• Mohammadabadi Reza Safaei
• Fan Guangyu

Classifications

• H01S3/30

  using scattering effects, e.g. stimulated Brillouin or Raman effects · CPC title

• H01S3/1086

  using scattering effects, e.g. Raman or Brillouin effect · CPC title

• H01S3/108

  using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering {(mode locking using a non-linear element H01S3/1112)} · CPC title

• H01S3/094046

  of a Raman fibre laser · CPC title

• H01S3/0092

  Nonlinear frequency conversion, e.g. second harmonic generation [SHG] or sum- or difference-frequency generation outside the laser cavity (nonlinear frequency conversion per se G02F1/35) · CPC title