100 J UV glass laser for dynamic compression research

J. Zweiback; S. F. Fochs; J. Bromage; D. Broege; R. Cuffney; Z. Currier; C. Dorrer; B. Ehrich; J. Engler; M. Guardalben; N. Kephalos; J. Marozas; R. Roides; J. Zuegel

doi:10.1117/12.2249523

17 February 2017 100 J UV glass laser for dynamic compression research

J. Zweiback, S. F. Fochs, J. Bromage, D. Broege, R. Cuffney, Z. Currier, C. Dorrer, B. Ehrich, J. Engler, M. Guardalben, N. Kephalos, J. Marozas, R. Roides, J. Zuegel

Author Affiliations +

Proceedings Volume 10082, Solid State Lasers XXVI: Technology and Devices; 100821R (2017) https://doi.org/10.1117/12.2249523
Event: SPIE LASE, 2017, San Francisco, California, United States

Abstract

A frequency tripled, Nd:Glass laser has been constructed and installed at the Dynamic Compression Sector located at the Advanced Photon Source. This 100-J laser will be used to drive shocks in condensed matter which will then be interrogated by the facility x-ray beam. The laser is designed for reliable operation, utilizing proven designs for all major subsystems. A fiber front-end provides arbitrarily shaped pulses to the amplifier chain. A diode-pumped Nd:glass regenerative amplifier is followed by a four-pass, flashlamp- pumped rod amplifier. The regenerative amplifier produces up to 20 mJ with better than 1% RMS stability. The passively multiplexed four-pass amplifier produces up to 2 J. The final amplifier uses a 15-cm Nd:glass disk amplifier in a six-pass configuration. Over 200 J of infrared energy is produced by the disk amplifier. A KDP Type-II/Type-II frequency tripler configuration, utilizing a dual tripler, converts the 1053-nm laser output to a wavelength of 351 nm and the ultraviolet beam is image relayed to the target chamber. Output energy stability is better than 3%. Smoothing by Spectral Dispersion and polarization smoothing have been optimized to produce a highly uniform focal spot. A distributed phase plate and aspheric lens produce a farfield spot with a measured uniformity of 8.2% RMS. Custom control software collects all data and provides the operator an intuitive interface to operate and maintain the laser.

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J. Zweiback, S. F. Fochs, J. Bromage, D. Broege, R. Cuffney, Z. Currier, C. Dorrer, B. Ehrich, J. Engler, M. Guardalben, N. Kephalos, J. Marozas, R. Roides, and J. Zuegel "100 J UV glass laser for dynamic compression research", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100821R (17 February 2017); https://doi.org/10.1117/12.2249523

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