Tunable single-frequency ultraviolet generation from a continuous-wave Ti: sapphire laser with an intracavity PPLN frequency doubler

• Published in: Applied physics. B, Lasers and optics Lasers and optics, 2003-11, Vol.77 (6-7), p.547-550
• Main Authors: WHITE, R. T, MCKINNIE, I. T, BUTTERWORTH, S. D, BAXTER, G. W, WARRINGTON, D. M, SMITH, P. G. R, ROSS, G. W, HANNA, D. C
• Format: Article
• Language: English
• Subjects: Crystals; Doped-insulator lasers and other solid state lasers; Exact sciences and technology; Frequency conversion; harmonic generation, including high-order harmonic generation; Frequency doublers; Fundamental areas of phenomenology (including applications); Harmonic generation, frequency conversion; Lasers; Lithium niobates; Nonlinear optical crystals; Nonlinear optics; Operating temperature; Optical materials; Optical sources and standards; Optics; Physics; Ring lasers; Titanium; Visible and ultraviolet sources; Wavelengths
• ISSN: 0946-2171; 1432-0649
• DOI: 10.1007/s00340-003-1309-1

We report a single-longitudinal-mode continuous-wave Ti{/content/F5HTG9L1WBM168RG/xxlarge8201.gif}:{/content/F5HTG9L1WB M 168RG/xxlarge8201.gif}sapphire ring laser that is intracavity frequency doubled in periodically poled lithium niobate (PPLN). Using a multi-grating PPLN crystal, the second harmonic is tunable from 386 to 403 nm -- close to the PPLN ultraviolet absorption edge -- with a maximum generated power of 114 mW. The wavelength dependence of the critical operating temperature required to eliminate photorefractive effects in the PPLN crystal is determined.