1. High Energy Mid-IR Drive Laser for Dielectric Laser Acceleration
Objective: develop a mid-IR pulsed laser source at 5 μm wavelength with energy of 500 μJ in a 1 ps pulse and with 10 Hz rep. rate for dielectric laser acceleration.
Technical approach:
Accelerator mode
Coupler eigenmode
Stacked structure
Ti:sapphire commercial pump laser
15 mJ, 0.8 µm 10 Hz
OPG/OPA
2 µm pump source
2.05 μm signal
2 mJ, 2 µm 10 Hz
OPG/OPA
5 µm source
Future: direct pumping by Tm/Ho/Cr-based high-energy short-pulse laser
500 µJ, 5 µm 10 Hz
Guibao Xu and Scott Wandel

2. High Energy Mid-IR Drive Laser for Dielectric Laser Acceleration
Specifications of surrogate 2.05 μm OPA
Design and construction of 5 μm OPA
5 μm seed pulse demonstration:
Pump at 200 μJ, 2 μm, 100fs,
~150 GW/cm2
Guibao Xu and Scott Wandel