Distributed-Feedback Solid-State Dye Laser in Visible Wavelength Region

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  • 可視光域におけるシングルモードＤＦＢ固体化色素レーザー
  • カシコウイキ ニ オケル シングル モード DFB コタイカ シキソ レーザー

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Description

We fabricated two types of relief gratings by an etchless process utilizing a two-beam interference method. The gratings had a pitch of 403 and 272 nm, respectively. The gratings were coated with solidified organic dyes, such as rhodamine B and stilbene 420, with xerogel or acrylic plastic as a host material for the organic dyes. The samples were pumped with the second or the third harmonic generation of Nd:YAG laser, and we obtained laser oscillations at 600.5, 601.1 nm in the red wavelength region and at 407.1 nm in the blue wavelength region. The spectra had widths of 0.1 nm. Therefore, we showed that a DFB solid-state dye laser can emit single longitudinal mode laser beams. We also evaluated other optical properties of the gratings. The results showed that the gratings have enough diffraction efficiency and enough durability to be used as a resonator of DFB solid dye lasers.<br>

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 66 (1), 17-23, 2009

    The Society of Polymer Science, Japan

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