Design of Fiber-Optical Parametric Amplifiers by Genetic Algorithm

Abstract

Genetic algorithm is adopted to give an automatic design scheme for fiber-based optical parametric amplifiers (FOPAs). Main steps of the optimization process and discussion about this algorithm are presented. The results show that present FOPA has more than 300-nm flat bandwidth with a central wavelength of 1500 nm and a gain ripple of less than 0.3 dB. Meanwhile, fluctuation in zero-dispersion wavelength of fibers is taken into consideration and its influence is briefly analyzed.

Computational intelligence in photonics technology and optical networks: A survey and future perspectives

“…Finally GA techniques have been applied in the optimization process of Fiber Optic Parametric Amplifier (FOPA) in Refs. [40,149].…”

Fiber Optic Parametric Amplifiers for Lightwave Systems

“…This problem can be solved to some extent by manipulating fiber dispersion [20]- [22]. It is predicted theoretically that a fairly flat gain spectrum is possible by using several fiber sections of suitable lengths and properly selecting dispersive properties of these fiber sections [44], [45]. However, such a scheme is difficult to implement in practice because dispersive properties of HNLFs are rarely known with sufficient precision.…”

Influence of the zero dispersion wavelength fluctuation on the gain and noise performance in dual-pump fiber parametric amplifiers

“…The noise figures for different fibers are varying even if the random fluctuation is small. Through choosing HNLFs with low ZDWL fluctuation and large nonlinear coefficient, high-gain and low-noise performance can be obtained.Fiber optical parametric amplifiers (FOPAs) [1][2][3][4][5][6][7][8] have attracted worldwide attention due to the potential properties for obtaining high gain [2] , large bandwidth [3] and low noise [4,6,9,10] . The dual-pump FOPA has more broad and flat gain spectrum with a higher gain compared with the one-pump FOPA.…”

“…In Ref. [7], the impacts of ZDWL random fluctuations on the gain performance of FOPA have been considered.In the multi-section FOPA, the gain ripple increases from 0.3 to 1 dB [8] . The noise characteristics of the one-pump FOPA in terms of ZDWL fluctuations have been investigated [12] .…”

“…In the multi-section FOPA, the gain ripple increases from 0.3 to 1 dB [8] . The noise characteristics of the one-pump FOPA in terms of ZDWL fluctuations have been investigated [12] .…”