Abstract
A new route for efficiently generating coherent blue light has been explored based on intracavity effective third-harmonic generation in one partly periodically poled crystal placed inside the cavity of a diode-pumped Nd:YAG laser. To achieve efficient conversion, we use a dual-temperature oven to separately control the phase-matching conditions for the two second-order nonlinear processes. In addition, a Fabry–Perot cavity at is incorporated into the crystal to increase the blue power significantly. When the laser is Q switched to produce long pulses, an average power of is generated at at a pump power of .
© 2005 Optical Society of America
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