@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00769111v1> a dcat:Dataset ;
    dct:description """
              We explore synchronization dynamics of dual-polarization solid-state lasers. Such lasers are able to produce a stable beat frequency in a wide range from Hz up to THz. This work take advantage of it in order to study several frequency locking mecanisms in these lasers. First, we build a dual-polarization laser with a semiconductor saturable absorber miror (SESAM). It enable a pulsed operation of the laser where all longitudinal modes are phase-locked, and this on both laser eigenstates. We also demonstrate that polarization state of successive pulses forms sequences that we describes here. A particular phenomenon is observed in this laser: when the beat-frequency is chosen equal to half the free spectral range of the laser, then the two frequency combs associated with the two laser eigenstates synchronize themself. Second, we submit a two-frequency laser to a frequency-shifted feedback. Doing so, we are able to transfer the radiofrequency synthetizer stability on the laser beat-frequency. This result is obtained both in cw and Q-switched regimes. Finally, together with the frequency-shifted feedback, we use the relaxation oscillations of a class B laser to induce a regime where the laser beat-frequency is synchronized with the external reference, while their relative phase oscillates. Subsequently, particular intensity dynamics are observed at the output.
            """ ;
    dct:identifier "tel-00769111" ;
    dct:issued "2026-05-29T06:21:43.378141"^^xsd:dateTime ;
    dct:language "fr" ;
    dct:modified "2026-05-29T06:21:43.378147"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Frequency synchronization in dual-polarization solid-state lasers : study of passive mode locking and frequency-shifted feedback" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00769111v1/resource/874cf93f-463b-4bcd-a924-ff64d5e8d1f5> ;
    dcat:keyword "class-b-lasers",
        "couplage-phase-intensite",
        "coupled-oscillators",
        "dual-frequency-lasers",
        "infoeu-reposemanticsdoctoralthesis",
        "laser-classe-b",
        "lasers-bi-frequence",
        "lidar-radar",
        "optical-feedback",
        "oscillateurs-couples",
        "passive-mode-locking",
        "phase-intensity-coupling",
        "retro-injection-optique",
        "spioptiengineering-sciences-physicsoptics--photonic",
        "synchronisation",
        "synchronization",
        "theses",
        "verrouillage-de-mode-passif" ;
    dcat:landingPage <https://theses.hal.science/tel-00769111> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00769111v1/resource/874cf93f-463b-4bcd-a924-ff64d5e8d1f5> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-29T06:21:43.590073"^^xsd:dateTime ;
    dct:modified "2026-05-29T06:21:43.332629"^^xsd:dateTime ;
    dct:title "Frequency synchronization in dual-polarization solid-state lasers : study of passive mode locking and frequency-shifted feedback" ;
    dcat:accessURL <https://theses.hal.science/tel-00769111> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
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<https://theses.hal.science/tel-00769111> a foaf:Document .