Xcimer Energy
Updated: September 11, 2026
Founder Conner Galloway, Alexander Valys
Country: USA | Funding: $117.8M (+)
Founded: 2021
Website: https://xcimer.energy
Xcimer develops laser system Phoenix – the largest privately owned laser system in the world and the company’s prototype for commercializing laser fusion. Housed in Xcimer’s 74,000-square-foot Denver laser facility, Phoenix is a proof of concept for an unconventional fusion architecture: a krypton fluoride (KrF) excimer laser using Stimulated Brillouin Scattering (SBS) to compress a microsecond-long pulse into the nanosecond timescales fusion requires. Phoenix is designed to demonstrate end-to-end integrated operation of excimer amplification and SBS pulse compression.
Founded: 2021
Website: https://xcimer.energy
Xcimer develops laser system Phoenix – the largest privately owned laser system in the world and the company’s prototype for commercializing laser fusion. Housed in Xcimer’s 74,000-square-foot Denver laser facility, Phoenix is a proof of concept for an unconventional fusion architecture: a krypton fluoride (KrF) excimer laser using Stimulated Brillouin Scattering (SBS) to compress a microsecond-long pulse into the nanosecond timescales fusion requires. Phoenix is designed to demonstrate end-to-end integrated operation of excimer amplification and SBS pulse compression.
