title: Raman amplification characteristics of As2Se3 photonic crystal fibers.
abstract: We present the dispersion and Raman amplification characteristics of As2Se3 photonic crystal fibers (PCFs). We compare the gain characteristics with conventional As2Se3 fibers and find that the Raman gain efficiency in PCFs can be improved by a factor of more than 4. This allows us to either use a small length of the fiber or to use the low pump power to attain similar gain characteristics. Numerical simulations reveal that a peak gain of 10 dB can be achieved in a 1.1 m long PCF when it is pumped at 1.5 microm in wavelength with an input power of 500 mW.
authors.affiliation: Division of Media and Network Technologies, Hokkaido University, Sapporo, Japan. skvarshney_10@yahoo.co.uk
authors.forename: Shailendra K
authors.initials: SK
authors.lastname: Varshney
authors.forename: Kunimasa
authors.initials: K
authors.lastname: Saitoh
authors.forename: Kento
authors.initials: K
authors.lastname: Iizawa
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Tsuchida
authors.forename: Masanori
authors.initials: M
authors.lastname: Koshiba
authors.forename: R K
authors.initials: RK
authors.lastname: Sinha