Raman amplification characteristics of As2Se3 photonic crystal fibers.

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.

[1]  Ishwar D. Aggarwal,et al.  Nonlinear properties of chalcogenide glass fibers , 2010 .

[2]  Gilles Renversez,et al.  Second mode transition in microstructured optical fibers: determination of the critical geometrical parameter and study of the matrix refractive index and effects of cladding size. , 2005, Optics Letters.

[3]  J. Sanghera,et al.  Modeling of a mid-IR chalcogenide fiber Raman laser. , 2003, Optics express.

[4]  Kunimasa Saitoh,et al.  Full-vectorial imaginary-distance beam propagation method based on a finite element scheme: application to photonic crystal fibers , 2002 .

[5]  Kunimasa Saitoh,et al.  Novel design of inherently gain-flattened discrete highly nonlinear photonic crystal fiber Raman amplifier and dispersion compensation using a single pump in C-band. , 2005, Optics express.

[6]  G. Millot,et al.  Experimental investigation of Brillouin and Raman scattering in a 2SG sulfide glass microstructured chalcogenide fiber. , 2008, Optics express.

[7]  Luca Vincetti,et al.  Study of Raman amplification properties in triangular photonic crystal fibers , 2003 .

[8]  P. Russell,et al.  Endlessly single-mode photonic crystal fiber. , 1997, Optics letters.

[9]  Laurent Brilland,et al.  Fabrication of complex structures of Holey Fibers in Chalcogenide glass. , 2006, Optics express.

[10]  J. Sanghera,et al.  Small-core As-Se fiber for Raman amplification. , 2003, Optics letters.

[11]  David J. Richardson,et al.  Chalcogenide holey fibres , 2000 .