Title :
Rayleigh-Based Raman Fiber Laser With Passive Erbium-Doped Fiber for Secondary Pumping Effect in Remote L-Band Erbium-Doped Fiber Amplifier
Author :
Bakar, M. H Abu ; Adikan, F. R Mahamd ; Mahdi, M.A.
Author_Institution :
Fac. of Eng., Univ. Putra Malaysia, Serdang, Malaysia
fDate :
6/1/2012 12:00:00 AM
Abstract :
This work focuses on a secondary pumping scheme for remote L-band erbium-doped fiber amplifier (R-EDFA) generated by integrating Rayleigh-based ultralong Raman fiber laser (ULRFL) with a section of passive erbium-doped fiber (EDF). A selective wavelength reflector combined with Rayleigh feedback in the transmission span forms the ULRFL cavity while the passive EDF deployed at the end of the span converts the ULRFL into a secondary C-band pump. Optimum ULRFL wavelength is determined by tuning the selective wavelength reflector across the C-band region. Combination of R-EDFA gain, Raman amplification, and passive EDF provides gain improvement as high as 15.5 dB over conventionally pumped R-EDFA with minimal optical signal-to-noise ratio penalty.
Keywords :
Raman lasers; erbium; laser accessories; laser feedback; optical elements; optical fibre amplifiers; optical pumping; C-band; L-band; R-EDFA; Rayleigh based Raman fiber laser; Rayleigh feedback; remote fiber amplifier; secondary pumping effect; selective wavelength reflector; Erbium-doped fiber amplifier; Gain; L-band; Optical fiber amplifiers; Pump lasers; Stimulated emission; Wavelength division multiplexing; Laser amplifiers; fiber lasers; fiber nonlinear optics;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2012.2203334