Title :
Multipump flattened-gain Raman amplifiers based on photonic-crystal fibers
Author :
Poli, Federica ; Rosa, Lorenzo ; Bottacini, Michele ; Foroni, Matteo ; Cucinotta, Annamaria ; Selleri, Stefano
Author_Institution :
Dipt. di Ingegneria dell´´Informazione, Univ. of Parma, Italy
Abstract :
Raman amplifiers based on photonic crystal fibers, whose cross section can be designed to enhance the nonlinear properties, have been investigated in this work. The use of multiple pumps is studied in order to flatten the amplifier gain spectrum, by varying their number, power, and wavelength, yielding a flatness as low as 0.5 dB in the wavelength range between 1540 and 1572 nm.
Keywords :
Raman lasers; infrared spectra; nonlinear optics; optical fibre amplifiers; optical pumping; photonic crystals; 1540 to 1572 nm; amplifier gain spectrum; flattened-gain Raman amplifiers; multipump Raman amplifiers; nonlinear properties; photonic crystal fibers; Backscatter; Bandwidth; Equations; Optical amplifiers; Optical fiber amplifiers; Performance gain; Photonic crystal fibers; Power amplifiers; Raman scattering; Stimulated emission; Gain flatness; Raman amplification; multipump amplifier; photonic-crystal fibers (PCFs);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.859537
