Chromium-forsterite Lasers: A Brief History
		Zhang et al, 90 nm FWHM; 20 fs; 60 mW IEEE J Q. Electronics 1997 V. Yanovsky et al, 90 nm FWHM; 80 nm FWHM; 25 fs, 400 mW OL 1993 Haus et al., 90 nm FWHM; 250 nm FWHM; 14 fs, 80 mW, OL