Laser Systems & ATLA Project - 4

[TILA-LIC9-03] 0.3 PW/(sr cm²) brightness unstable resonator microchip laser for multi-point ignition

*Hwan Hong Lim¹, Takunori Taira^2,1 (1. Institute for Molecular Science, 2. RIKEN SPring-8 Center)

A passively cooled Nd:YAG/Cr⁴⁺:YAG microchip laser sets a brightness record of 300 TW/(sr cm²) with 26.4 MW peak power (10.5 mJ, 398 ps) and M² of 2.7 at 10 Hz. This enables a 150 mm focusing and 7-point air-breakdown, while 100 Hz operation is demonstrated without active cooling using a DFC-chip.