title: Efficient Raman shifting of high-energy picosecond pulses into the eye-safe 1.5-microm spectral region by use of a KGd(WO4)2 crystal.
abstract: We report an efficient transient stimulated Raman conversion of high-energy picosecond pulses at 1350 nm into the eye-safe 1500-nm wavelength range by use of a KGd(WO4)2 crystal. The conversion efficiency into either 1503- or 1537-nm radiation (767- or 901-cm(-1) Raman modes, respectively) is measured to be approximately 10% in a single-pass configuration. The transient Raman gain coefficient is found to be approximately 0.8 cm/GW. Simultaneous generation of multiple Raman lines is also observed.
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada. a.major@utoronto.ca
authors.forename: Arkady
authors.initials: A
authors.lastname: Major
authors.forename: J Stewart
authors.initials: JS
authors.lastname: Aitchison
authors.forename: Peter W E
authors.initials: PW
authors.lastname: Smith
authors.forename: Nigel
authors.initials: N
authors.lastname: Langford
authors.forename: Allister I
authors.initials: AI
authors.lastname: Ferguson