Abstract

We report the operation of an in-line Nd:YAG resonator using self-pumped phase conjugation in Cr4+:YAG at λ=1.064 µm in the nanosecond regime. The output beam has a high-quality diffraction-limited TEM00 mode and a pulse shape of 15 ns, showing the self-Q-switching ability of the resonator. A maximum extraction of 18 mJ and a maximum reflectivity of 2.0 are measured. A transient model provides insight into the energy characteristics and the dynamics of such an in-line resonator.

© 1998 Optical Society of America

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