Title :
Ultra-long Raman fibre laser transmission links
Author :
Karalekas, Vasileios ; Ania-Castañón, Juan-Diego ; Harper, Paul ; Turitsyn, Sergei K.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
fDate :
June 28 2009-July 2 2009
Abstract :
In this paper we review some recent results related to the application of ultra-long Raman fibre laser (URFL) cavities to quasi-lossless optical signal transmission. In an URFL, the transmission fibre itself is contained inside a laser cavity delimited by two fibre Bragg gratings, allowing for a more efficient distribution of the Raman gain to the transmitted signal. We explore the unique properties of these URFLs experimentally, showing the excellent agreement with numerical predictions. URFL schemes can provide reduced signal power excursion (<0.98 dB in 75 km of SMF), and improved OSNR performance compared to conventional distributed Raman and lumped amplification. We also analyze the possibility of achieving simultaneous spatio-spectral transparency in optical fibre. Thanks to their unique properties, URFLs are ideal candidates for quasi-lossless DWDM signal transmission, soliton transmission and nonlinear optical signal processing.
Keywords :
Bragg gratings; Raman lasers; fibre lasers; laser cavity resonators; optical communication equipment; optical links; transparency; wavelength division multiplexing; DWDM; Raman gain distribution; fibre Bragg gratings; laser cavity; nonlinear optical signal processing; quasilossless optical signal transmission; signal power excursion; soliton transmission; spatio-spectral transparency; transmission links; ultra-long Raman fibre laser; Bragg gratings; Fiber gratings; Fiber lasers; Fiber nonlinear optics; Optical fibers; Optical noise; Optical signal processing; Optical solitons; Signal to noise ratio; Stimulated emission; Raman amplification; Raman fibre lasers; cross-domain transparency; effective reflectivity; lossless transmission;
Conference_Titel :
Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on
Conference_Location :
Azores
Print_ISBN :
978-1-4244-4825-8
Electronic_ISBN :
978-1-4244-4827-2
DOI :
10.1109/ICTON.2009.5185054
