Abstract
We demonstrate a high-power, narrowband pulsed source at by two stages of frequency doubling in periodically poled and periodically poled of an amplified, passively mode-locked fiber laser. With a frequency quadrupling efficiency of 5.5% and a bandwidth, the ultraviolet source is a suitable compact pump source for many entanglement-based quantum information processing tasks.
© 2007 Optical Society of America
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