Global Patent Index - EP 4291949 A1

EP 4291949 A1 20231220 - SYSTEM AND METHOD FOR GENERATING A LIGHT PULSE WITH SUB-PICOSECOND DURATION THAT IS DURATION AND/OR REPETITION FREQUENCY ADJUSTABLE

Title (en)

SYSTEM AND METHOD FOR GENERATING A LIGHT PULSE WITH SUB-PICOSECOND DURATION THAT IS DURATION AND/OR REPETITION FREQUENCY ADJUSTABLE

Title (de)

SYSTEM UND VERFAHREN ZUR ERZEUGUNG EINES LICHTIMPULSES MIT SUBPIKOSEKUNDENDAUER, DIE EINE DAUER UND/ODER EINE WIEDERHOLUNGSFREQUENZ EINSTELLBAR IST

Title (fr)

SYSTÈME ET PROCÉDÉ DE GÉNÉRATION D'IMPULSION LUMINEUSE DE DURÉE SUB-PICOSECONDE, AJUSTABLE EN DURÉE ET/OU EN FRÉQUENCE DE RÉPÉTITION

Publication

EP 4291949 A1 20231220 (FR)

Application

EP 22709630 A 20220211

Priority

  • FR 2101376 A 20210212
  • EP 2022053409 W 20220211

Abstract (en)

[origin: WO2022171815A1] The invention relates to a light pulse generating system that comprises a source (1), an electro-optical modulator (2) suitable for receiving source laser radiation (10), forming at least one source light pulse (20) with a duration that is less than or equal to 100 picoseconds and adjusting the duration and/or the repetition frequency of the source light pulse (20); an optical amplifier (41) operating in an anomalous dispersion regime in order to form an amplified light pulse (40), a passive optical fibre (61) arranged to receive the amplified light pulse (40) and to generate a spectrally broadened amplified light pulse (60), the amplified light pulse (40) having a peak power above a predetermined threshold in order to broaden the amplified light pulse spectrally by self-phase modulation in the passive optical fibre and to generate a non-linear Raman signal, the non-linear Raman signal being suitable for stabilising the energy of the spectrally broadened amplified light pulse (60).

IPC 8 full level

G02F 1/365 (2006.01); H01S 3/067 (2006.01); H01S 3/30 (2006.01)

CPC (source: EP KR US)

G02F 1/3501 (2013.01 - KR); G02F 1/365 (2013.01 - EP KR); H01S 3/0057 (2013.01 - KR US); H01S 3/0085 (2013.01 - KR US); H01S 3/0092 (2013.01 - KR US); H01S 3/0675 (2013.01 - US); H01S 3/06754 (2013.01 - EP KR US); H01S 3/302 (2013.01 - EP KR US); G02F 1/3501 (2013.01 - EP); H01S 3/005 (2013.01 - EP); H01S 3/0057 (2013.01 - EP); H01S 3/0085 (2013.01 - EP); H01S 3/0092 (2013.01 - EP); H01S 3/1603 (2013.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

WO 2022171815 A1 20220818; CN 117120922 A 20231124; EP 4291949 A1 20231220; FR 3119901 A1 20220819; KR 20230151994 A 20231102; US 2024120698 A1 20240411

DOCDB simple family (application)

EP 2022053409 W 20220211; CN 202280027129 A 20220211; EP 22709630 A 20220211; FR 2101376 A 20210212; KR 20237027387 A 20220211; US 202218546147 A 20220211