Optimized design of two-pump fiber optical parametric amplifier with two-section nonlinear fibers using genetic...

Area of Science:

• Optics and Photonics
• Nonlinear Optics
• Fiber Optics

Background:

• Fiber optical parametric amplifiers (FOPAs) are crucial for optical signal processing.
• Achieving broadband amplification with uniform gain remains a challenge in FOPA design.
• High nonlinear fibers (HNLFs) offer enhanced nonlinear effects for parametric amplification.

Purpose of the Study:

• To design and optimize a two-pump fiber optical parametric amplifier (FOPA).
• To achieve broadband amplification with high gain uniformity.
• To explore the application of genetic algorithms in optimizing FOPA parameters.

Main Methods:

• Utilized a two-pump configuration for the fiber optical parametric amplifier.
• Employed two sections of high nonlinear fibers (HNLFs).
• Applied a genetic algorithm (GA) for multivariate stochastic optimization of fiber length and dispersion coefficient.

Main Results:

• Developed a broadband FOPA with a two-section HNLF design.
• Achieved a theoretical uniform gain of 20.3 dB.
• Demonstrated a gain uniformity of 0.2 dB over a 346-nm bandwidth.

Conclusions:

• The proposed two-pump FOPA design effectively achieves broadband amplification.
• Genetic algorithm optimization is a viable method for enhancing FOPA performance.
• The optimized FOPA shows significant potential for applications requiring wide and uniform optical gain.