High energy, high pulse rate laser operation using crystalline adhesive-free bonded Yb:YAG slabs

Mariastefania De Vido, P. Jonathan Phillips, David Meissner, Stephanie Meissner, Gary Quinn, Saumyabrata Banerjee, Martin Divoky, Paul D. Mason

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We report on the successful amplification of 10 ns pulses to 10 J energy at 10 Hz in a DiPOLE laser amplifier using crystalline Yb:YAG/Cr:YAG composite slabs manufactured using adhesive-free bonding (AFB) technology. We demonstrate that bonded slabs are suitable for operation in high energy cryogenic laser amplifiers. We also report on frequency doubling of the beam amplified in the bonded slabs. When the pulse energy of the output infrared beam is set to 5 J, a pulse energy of 3.9 J is achieved in the green (corresponding to 78% conversion efficiency). Results demonstrate that AFB technology is suitable for producing large-sized gain material slabs and can overcome current limitations in the manufacture of large-aperture gain material pieces. We believe this work will facilitate energy scaling of high energy lasers where aperture scaling of optical elements is not achievable via conventional manufacturing techniques.
Original languageEnglish
Pages (from-to)28101-28111
Number of pages11
JournalOptics Express
Issue number17
Early online date8 Aug 2023
Publication statusPublished - 14 Aug 2023


  • Atomic and Molecular Physics, and Optics

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