A stable pseudo-confocal geometry for recirculation injection by nonlinear gating (RING) of high-energy ultrashort pulses is demonstrated. Implementation of RING in this robust geometry will benefit the development of ultrabright light sources based on inverse Compton scattering by increasing their efficiency. A detailed cavity analysis is presented, and a cavity enhancement factor of 17 has been experimentally observed.
© 2012 Optical Society of America
Original Manuscript: August 30, 2012
Revised Manuscript: October 7, 2012
Manuscript Accepted: October 9, 2012
Published: November 12, 2012
Rodion Tikhoplav, Marcus Babzien, Andrey Ovodenko, and Igor Jovanovic, "High-power pulse recirculation in a stable pseudo-confocal geometry," Opt. Lett. 37, 4717-4719 (2012)