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Optical damage considerations in the design of the matter in extreme condition upgrade (MEC-U) laser systems

Conference · · Laser-Induced Damage in Optical Materials 2023
DOI:https://doi.org/10.1117/12.2685218· OSTI ID:2248039
 [1];  [2];  [2];  [2];  [3];  [3];  [4];  [4]
  1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Laboratory for Laser Energetics, University of Rochester
  2. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  3. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  4. University of Rochester, NY (United States)
+ Show Author Affiliations
The Matter in Extreme Conditions Upgrade (MEC-U) project is a major upgrade to the MEC instrument of the LINAC Coherent Light Source (LCLS) X-ray free electron laser (XFEL) user facility at SLAC National Accelerator Laboratory. Here, the envisioned MEC upgrade will significantly enhance the capabilities of the pump laser sources in current MEC experimental station, boosting the energy of the nanosecond shock driver from 100 J to the kJ level, and increasing the power and repetition rate of the short pulse laser from 25 TW at 5 Hz to 1 PW at 10 Hz rate. Building such high energy/power pump laser systems presents challenges to minimize and mitigate against laser-induced optical damage. Here, as part of the system design, we have identified the optics at high-risk to damage and we have designed the laser systems to mitigate against these damage risks to ensure sustained facility operation.
Research Organization:
University of Rochester, NY (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
DOE Contract Number:
NA0003856; AC02-76SF00515; AC52-07NA27344
OSTI ID:
2248039
Conference Information:
Journal Name: Laser-Induced Damage in Optical Materials 2023 Journal Volume: 12726
Country of Publication:
United States
Language:
English

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Related Subjects

Coating
Design and modeling
Laser damage threshold
Laser energy
Laser systems engineering
Mirrors
Modulation
Pulsed laser operation
Vacuum chambers