High Efficient Second Harmonic at 416 nm and Fourth Harmonic Generation at 208 nm in Compacted All-Solid-State Ti∶Sapphire Laser

[in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]; [in Chinese]

Journals >Chinese Journal of Lasers >Volume 31 >Issue 7 >Page 769 > Article

Chinese Journal of Lasers
Vol. 31, Issue 7, 769 (2004)

High Efficient Second Harmonic at 416 nm and Fourth Harmonic Generation at 208 nm in Compacted All-Solid-State Ti∶Sapphire Laser

[in Chinese]^*, [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]

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[in Chinese]

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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. High Efficient Second Harmonic at 416 nm and Fourth Harmonic Generation at 208 nm in Compacted All-Solid-State Ti∶Sapphire Laser[J]. Chinese Journal of Lasers, 2004, 31(7): 769 Copy Citation Text

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Abstract

Second harmonic and fourth harmonic are generated from Ti∶sapphire laser pumped by a diode-Q-switched, doubling-frequency YLiF4 (YLF) laser at 527 nm. The nonlinear crystal LiB3O5 (LBO) is used to generate the second harmonic wave in the Ti∶sapphire cavity at Ⅰ-phase match with birefringent filter, and β-BaB2O4 (BBO) crystal is used to generate ultraviolet at 208 nm. Maximum average power of 610 mW at 416 nm, and 64 mW at 208 nm are obtained at 1 kHz repetition rate when the pumping power is 3.8 W. The high conversion efficiency is attributed to the birefringent filter which narrows the linewidth of Ti

Keywords

birefringent filter fourth harmonic generation intracavity doubling linewidth Ti∶sapphire laser technique