Titanium: sapphire laser with dye-laser pumping

Michael J.P. Payne; N. A. Lowde

doi:10.1117/12.20577

1 August 1990 Titanium: sapphire laser with dye-laser pumping

Michael J.P. Payne, N. A. Lowde

Proceedings Volume 1277, High-Power Solid State Lasers and Applications; (1990) https://doi.org/10.1117/12.20577
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

A simple laser of titanium-doped sapphire in a plane mirror res9nator was pumped by a flashlamp pumped dye laser. The dye laser emitted pulses of duration 2 js (FWHM) and energy close to one joule at 490 nm. Values for the lasing threshold and slope efficiency (well above threshold) for the titanium :sapphire laser were derived by two methods. Firstly the experimental data were fitted by theory which took account of the spatial and temporal properties of the pump beam and had only the threshold and slope as adjustable parameters. Secondly, the parameters were calculated from the measured spectroscopic properties of the resonator mirrors and the crystal. The sets of derived parameters agreed within about I 5%. Two crystals were employed, with low figure of merit (27 for the higher-doped sample). The greatest overall efficiency was limited principally by the pump beam properties and not by losses in the crystals.

Citation Download Citation

Michael J.P. Payne and N. A. Lowde "Titanium: sapphire laser with dye-laser pumping", Proc. SPIE 1277, High-Power Solid State Lasers and Applications, (1 August 1990); https://doi.org/10.1117/12.20577

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