Title :
Automatic design scheme for optical-fiber Raman amplifiers backward-pumped with multiple laser diode pumps
Author :
Yan, Minhui ; Chen, Jianping ; Jiang, Wenning ; Li, Jianlang ; Chen, Junfeng ; Li, Xin
Author_Institution :
Lab. on Fiber-Opt. Local Area Commun., Shanghai Jiaotong Univ., China
Abstract :
A simulated annealing algorithm is adopted to give an automatic pump configuration in laser-diode backward-pumped-distributed fiber Raman amplifiers. The demonstration of the optimization process of wavelengths and powers in an optical-fiber Raman amplifier using four laser-diode pumps is presented. The resulting gain ripple is less than 2.6 dB in respect to the 30 dB average gain in the amplification bandwidth of more than 50 nm (64 signal channels). The algorithm can be practically applied to the desired signal channel number and gain profile.
Keywords :
Raman lasers; laser beams; optical design techniques; optical fibre amplifiers; optical fibre communication; optical pumping; optical transmitters; simulated annealing; wavelength division multiplexing; 2.6 dB; 30 dB; WDM; amplification bandwidth; automatic design scheme; automatic pump configuration; average gain; backward-pumped amplifiers; gain profile; gain ripple; laser-diode backward-pumped-distributed fiber Raman amplifiers; laser-diode pumps; multiple laser diode pumps; optical-fiber Raman amplifier; optical-fiber Raman amplifiers; optimization process; powers; signal channel number; signal channels; simulated annealing algorithm; wavelengths; Fiber lasers; Laser excitation; Optical amplifiers; Optical design; Optical fiber amplifiers; Optical pumping; Pump lasers; Semiconductor optical amplifiers; Simulated annealing; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
