A. Dubietis, G. Jonušauskas and A. Piskarskas, Optics Communications 88(4–6), 437–440 (1992). Published title and indexed bylines identify chirped and stretched pulse parametric amplification in BBO. Bibliographic record: cir.nii.ac.jp/crid/1360011145238718336 . Initial-only bylines are retained; no full-name expansion or experimental performance number is inferred.
Publisher Abstract: www.sciencedirect.com/science/article/abs/pii/0030401892900708 . It reports pulses compressed to 70 fs and approximately 0.9 GW output power for chirped and stretched pulse parametric amplification in BBO. The indexed publisher Abstract was verified; the direct page returned HTTP 403, so no unobserved full-text pump wavelength, crystal orientation or pulse-energy value is inferred. The exact byline remains A. Dubietis, G. Jonušauskas and A. Piskarskas.