Spectral and temporal shaping of spectrally incoherent pulses in the infrared and ultraviolet

• DOI: 10.1364/oe.449418
• Publication Date: 2022-01-17T06:30:06Z
• Authors: C. Dorrer; M. Spilatro
• Keywords: Nanosecond; Ultraviolet; Modulation (music); Optical parametric amplifier

Laser-plasma instabilities (LPIs) hinder the interaction of high-energy laser pulses with targets. Simulations show that broadband spectrally incoherent can mitigate these instabilities. Optimizing operation and target requires controlling properties optical pulses. We demonstrate closed-loop control spectral density pulse shape nanosecond after parametric amplification in infrared (∼1053 nm) sum-frequency generation to ultraviolet (∼351 using temporal modulation fiber front end. The high versatility demonstrated approaches support high-energy, by future facilities for improved LPI mitigation.