Abstract

A high-pulse-repetition-frequency (PRF) pulsed light source in the deep ultraviolet region has been realized by a multiple wavelength conversion technique using a hybrid fiber/bulk amplifier system. Output of $199\mathrm{nm}$ with a power of $50\mathrm{mW}$ was achieved at $2.4\mathrm{MHz}$ PRF. The $1\mathrm{\mu m}$ amplifier consisted of a Yb-doped fiber amplifier and a Nd-doped $\mathrm{YV}{\mathrm{O}}_4$ amplifier. A $1.5\mathrm{\mu m}$ fiber master-oscillator power amplifier was employed as the other fundamental source. The amplifiers exhibited good amplification properties in pulse energy, polarization extinction ratio, and spectrum for nonlinear wavelength conversion.

© 2009 Optical Society of America

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