We demonstrated passively Q-switched operation of the Bessel-Gauss laser. To prevent excessive thermal load on the laser crystal, we used a quasi-CW pumping consisting of 1-ms pulses at a 200-Hz repetition rate. The pump power level was adjusted so that a single Q-switched pulse was obtained from a single pump pulse. By adding a Cr/sup 4+/:YAG crystal with an initial transmission of T/sub 0/=90% to the 80-mm cavity, we obtained two beams of 30-ns Bessel-Gauss pulses with a pulse energy of 3 /spl mu/J. The one- and two-dimensional profiles of these Bessel-Gauss pulses at different distances from the waist were similar to those of the corresponding CW beam. By using a Cr/sup 4+/:YAG crystal with T/sub 0/=45% and shortening the cavity length to 38 mm, 3-ns-long, 7.5-/spl mu/J pulses were generated. We observed, however, that the far-field pattern of these short pulses was somewhat different from that of the CW beam.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    CW and pulsed operation of a diode-pumped Bessel-Gauss laser


    Beteiligte:
    Hakola, A. (Autor:in) / Butchter, S.C. (Autor:in) / Kajava, T. (Autor:in) / Elfstrom, H. (Autor:in) / Simonen, J. (Autor:in) / Paakkonen, P. (Autor:in) / Turunen, J. (Autor:in)


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    853164 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    High Efficiency, Pulsed Diode-Pumped Two Micron Laser

    McCarthy, J. C. / Budni, P. A. / Labrie, G. W. et al. | British Library Conference Proceedings | 1994


    Resonator with Bessel-Gauss modes [4353-24]

    Khilo, N. A. / Katranji, E. G. / Ryzhevich, A. A. et al. | British Library Conference Proceedings | 2001


    Laser Resonators with Bessel-Gauss Modes: Design and Analysis [3573-167]

    Paeaekkoenen, P. / Turunen, J. / Scientific Society for Optics, Acoustics, Motion Picture and Theater Technology (OPAKFI) et al. | British Library Conference Proceedings | 1998


    Diode Pumped Cesium Laser

    Ehrenreich, T. / Zhdanov, B. / Takekoshi, T. et al. | IEEE | 2005


    Diode-pumped Nd:CaGdAlO4 laser

    Lagatsky, A.A. / Kuleshov, N.V. / Mifdraifov, V.P. et al. | IEEE | 1997