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Updated: Jun 4, 2026
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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
Picosecond pulses from a cryogenically cooled, composite amplifier using Yb:YAG and Yb:GSAG
Darren A Rand1, Scot E J Shaw, Juan R Ochoa
1Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02420, USA. drand@LL.mit.edu
Optics Letters
|February 2, 2011
Abstract:
A cryogenic Yb amplifier using two laser materials, Gd3Sc2Al3O12 and Y3Al5O12 (YAG), has been used to obtain 70 W average power at 5 kHz pulse repetition frequency; the output was compressed to 1.6 ps, compared with an input compressible to 1.4 ps. The gain broadening obtained by combining two media enables shorter pulses than using Yb:YAG alone but retains the power-scaling advantages of cryogenic Yb:YAG.
