Design Blueprint: A Kilowatt Yb:YAG Thin-Disk Amplifier Sized by Axial Heat Flow and Thermal-Lens Power

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24155372): This paper presents a computed design for a diode-pumped Yb:YAG thin-disk amplifier head intended for kilowatt-class average power at 1030 nm. The sizing follows from applying the relevant intensity, thermal, nonlinear and geometric bounds at a single stated operating point, with every number produced by a deposited computation. The headline result is an absorbed pump power of 1080 W, a heat load of 181 W, an output of 899 W (74.9% of incident pump), an axial temperature drop across the disk of only 56.8 K, and a pump intensity of 1.9 kW/cm2 over a 0.64 cm2 pumped area. The binding constraint Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.