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  1. Book ; Online: Simulations and analysis of beam quality improvement in spatially modulated broad area edge-emitting devices

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1946)

    2014  

    Author's details Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1946
    Language English
    Size Online-Ressource (PDF-Datei: 13 S., 1.333 KB), Ill., graph. Darst.
    Publisher Niedersächsische Staats- und Universitätsbibliothek ; Techn. Informationsbibl. und Univ.-Bibl ; WIAS
    Publishing place Göttingen ; Hannover ; Berlin
    Document type Book ; Online
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Book: Beam shaping mechanism in spatially modulated edge emitting broad area semiconductos amplifiers

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1790)

    2013  

    Abstract: Literaturverz. S. 7 - ...

    Author's details Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1790
    Abstract Literaturverz. S. 7 -
    Language English
    Size 8 S., graph. Darst.
    Publisher WIAS
    Publishing place Berlin
    Document type Book
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Book: Traveling wave modeling, simulation and analysis of quantum dot mode locked semiconductor lasers

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; No. 1506)

    2010  

    Author's details Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungverbund Berlin e.V. Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; No. 1506
    Language English
    Size 12 S., graph. Darst., 30 cm
    Publisher WIAS
    Publishing place Berlin
    Document type Book
    Note Literaturangaben ; Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden. - Auch als elektronische Ausg. vorhanden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Book: Mode transitions in DBR semiconductor lasers: experiments, mode analysis and simulations

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1513)

    2010  

    Institution Weierstraß-Institut für Angewandte Analysis und Stochastik
    Author's details Weierstraß-Institut für Angewandte Analysis und Stochastik. Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1513
    Language English
    Size 15 S., graph. Darst., 30 cm
    Publishing place Berlin
    Document type Book
    Note Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden. - Auch als elektronische Ausg. vorhanden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Book: Broadening of mode-locking pulses in quantum-dot semiconductor lasers

    Radziunas, Mindaugas

    simulation, analysis and experiments

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1584)

    2010  

    Institution Weierstraß-Institut für Angewandte Analysis und Stochastik
    Author's details Weierstraß-Institut für Angewandte Analysis und Stochastik. Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1584
    Language English
    Size 15 S., graph. Darst., 30 cm
    Publisher WIAS
    Publishing place Berlin
    Document type Book
    Note Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden. - Auch als elektronische Ausg. vorhanden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  6. Book: Strong asymmetry of mode-locking pulses in quantum-dot semiconductor lasers

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1579)

    2010  

    Abstract: Literaturverz. S. 6 - ... ...

    Author's details Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik im Forschungsverbund Berlin e.V. ; 1579
    Abstract Literaturverz. S. 6 - 7
    Language English
    Size 7 S., graph. Darst.
    Publisher WIAS
    Publishing place Berlin
    Document type Book
    Note Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden. - Auch als elektronische Ausg. vorhanden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Article ; Online: Numerical study of optical feedback coherence in semiconductor laser dynamics.

    Radziunas, Mindaugas / Little, Douglas J / Kane, Deborah M

    Optics letters

    2019  Volume 44, Issue 17, Page(s) 4207–4210

    Abstract: The nonlinear dynamics of a semiconductor laser with coherent, as compared to incoherent, delayed optical feedback systems have been discussed and contrasted in prior research literature. Here, we report simulations of how the dynamics change as the ... ...

    Abstract The nonlinear dynamics of a semiconductor laser with coherent, as compared to incoherent, delayed optical feedback systems have been discussed and contrasted in prior research literature. Here, we report simulations of how the dynamics change as the coherence of the optical feedback is systematically varied from being coherent, through several levels of partial coherence, to incoherent. An increasing rate of phase disturbance is used to vary the coherence. An edge-emitting, 830 nm, Fabry-Perot semiconductor laser with a long external cavity is simulated. Following this study, consideration of prior and future experimental studies should include evaluation of where on the continuum of partial coherence the delayed optical feedback sits. The level of partial coherence is an important factor affecting the dynamics.
    Language English
    Publishing date 2019-09-05
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.44.004207
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  8. Book ; Online: Modeling and simulations of beam stabilization in edge-emitting broad area semiconductor devices

    Ciegis, Raimondas / Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1806)

    2013  

    Abstract: A 2+1 dimensional PDE traveling wave model describing spatial-lateral dynamics of edge-emitting broad area semiconductor devices is considered. A numerical scheme based on a split-step Fourier method is presented and implemented on a parallel compute ... ...

    Author's details Mindaugas Radziunas; Raimondas Ciegis
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1806
    Abstract A 2+1 dimensional PDE traveling wave model describing spatial-lateral dynamics of edge-emitting broad area semiconductor devices is considered. A numerical scheme based on a split-step Fourier method is presented and implemented on a parallel compute cluster. Simulations of the model equations are used for optimizing of existing devices with respect to the emitted beam quality, as well as for creating and testing of novel device design concepts
    Language English
    Size Online-Ressource (PDF-Datei: 12 S., 324 KB), Ill., graph. Darst.
    Publisher Technische Informationsbibliothek u. Universitätsbibliothek ; WIAS, Weierstraß-Institut für Angewandte Analysis und Stochastik
    Publishing place Hannover ; Berlin
    Document type Book ; Online
    Note Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  9. Article ; Online: Spatially modulated broad-area lasers for narrow lateral far-field divergence.

    Zeghuzi, Anissa / Koester, Jan-Philipp / Radziunas, Mindaugas / Christopher, Heike / Wenzel, Hans / Knigge, Andrea

    Optics express

    2021  Volume 29, Issue 16, Page(s) 25133–25141

    Abstract: A novel laser design is presented that combines a longitudinal-lateral gain-loss modulation with an additional phase tailoring achieved by etching rectangular trenches. At 100 A pulsed operation, simulations predict a far-field profile with 0.3° full ... ...

    Abstract A novel laser design is presented that combines a longitudinal-lateral gain-loss modulation with an additional phase tailoring achieved by etching rectangular trenches. At 100 A pulsed operation, simulations predict a far-field profile with 0.3° full width at half maximum (
    Language English
    Publishing date 2021-09-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.430804
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  10. Book: Mode transitions in distributed-feedback tapered master-oscillator power-amplifier

    Radziunas, Mindaugas

    (Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1366)

    2008  

    Abstract: Theoretical and experimental investigations have been carried out to study the spectral and spatial behavior of monolithically integrated distributed-feedback tapered master-oscillators power-amplifiers emitting around 973 nm. Introduction of self and ... ...

    Author's details Mindaugas Radziunas
    Series title Preprint / Weierstraß-Institut für Angewandte Analysis und Stochastik ; 1366
    Abstract Theoretical and experimental investigations have been carried out to study the spectral and spatial behavior of monolithically integrated distributed-feedback tapered master-oscillators power-amplifiers emitting around 973 nm. Introduction of self and cross heating effects and the analysis of longitudinal optical modes allows us to explain experimental results. The results show a good qualitative agreement between measured and calculated characteristics.
    Language English
    Size 8 S.
    Publisher WIAS
    Publishing place Berlin
    Document type Book
    Note Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden. - Auch als elektronische Ausg. vorhanden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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