Runge, P. K. published the artcileMode-locking of helium-neon lasers with saturable organic dyes, Synthetic Route of 10510-54-0, the publication is Optics Communications (1971), 3(6), 434-6, database is CAplus.
Cresyl Violet, Cresyl Violet Acetate, and Nile Blue A [(0.8-3.3) ¡Á 10-4M in MeOH] acted as saturable absorbers for mode-locking 2 He-Ne lasers (10 and 1.8 m long, resp.) at ¦Ë = 6328 ?. The optical pulse width decreased linearly with increasing pulse energy. The min. pulse width was 220 psec for the 10-m laser (with 2 ¡Á 10-4M Cresyl Violet) at a peak power d. of 2.5 ¡Á 108 W/cm2. The min. power d., at which mode-locking was observed, was 2 ¡Á 105 W/cm2 for the 1.8-m laser. The dye concentration determined the pulse repetition rate of the laser.
Optics Communications published new progress about 10510-54-0. 10510-54-0 belongs to catalysis-chemistry, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Inhibitor,Inhibitor, name is 5,9-Diaminobenzo[a]phenoxazin-7-ium acetate, and the molecular formula is C18H15N3O3, Synthetic Route of 10510-54-0.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia