Passive mode-locking of a flashlamp pumped coumarin 522 dye laser has been achieved, for the first time, using the saturable absorber 2-(p-dimethylaminostyryl)-benzothiazolylethyl iodide. Frequency tunable picosecond pulses as short as 4 ps have been produced over the spectral range 508-524 nm. Measurements on the relaxation time of the saturable absorber are also presented. © 1982.
Sibbett, W., & Taylor, J. R. (1982). Passive mode-locking of the flashlamp pumped coumarin 522 dye laser. Optics Communications, 44(2), 121–124. https://doi.org/10.1016/0030-4018(82)90123-7