2012•Laser & InfraredRequires access

Study on a practical 266 nm ultraviolet laser

Lei Liu

Abstract

An acousto-optic Q-switched 1064 nm quasi-continuous laser with a LD end-pumped Nd∶ YVO4 crystal is reported.A LBO crystal and a BBO crystal are respectively used in the cavity for intracavity frequency doubling and extracavity frequency quadrupling.A 266 nm ultraviolet laser output with a pulse width of 22 ns,a repetition of 20 kHz and an average power of 1.12 W is obtained.And the optical-optical efficiency is 21.37%.

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Key concepts: Ultraviolet, Materials science, Laser, Crystal (programming language), Optics, Repetition (rhetorical device), Pulse-width modulation, Optoelectronics