Picosecond phosphate glass laser with controlled parameters

Tunable ultrashort laser pulses were generated in GLS22P phosphate neodymium glass with a total pumped length of 160 mm emitting at wavelengths 1.046–1.09 μ and KNFS glass of length 40 mm emitting at wavelengths 1.05–1.07 μ. The ultrashort pulses were almost bandwidthlimited, had durations in the range 6–250 psec, and were characterized by a spectral width 0.15–6 cm^–1. Moreover, tunable ultrashort pulses with a spectral width 30–40 cm^–1 were also generated.