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Published on: November 22, 2019
Prebifurcation noise amplification in a fiber laser
G Huerta-Cuellar1, A N Pisarchik, A V Kir'yanov
1Centro de Investigaciones en Optica, Loma del Bosque 115, Lomas del Campestre, 37150 Leon, Guanajuato, Mexico.
Summary
Noise amplification was experimentally observed in erbium-doped fiber lasers near critical bifurcation points. Analysis of bifurcation diagrams and power spectra confirmed this phenomenon, aligning with advanced laser model simulations.
Area of Science:
- Nonlinear dynamics
- Laser physics
- Optical engineering
Background:
- Erbium-doped fiber lasers are crucial in modern photonics.
- Understanding laser dynamics, especially bifurcations, is key to controlling output.
- Noise amplification near bifurcations can impact laser performance.
Purpose of the Study:
- To experimentally investigate noise amplification in erbium-doped fiber lasers.
- To analyze the laser's behavior near saddle-node, period-doubling, and crisis bifurcations.
- To validate experimental findings with numerical simulations.
Main Methods:
- Experimental setup for an erbium-doped fiber laser.
- Analysis of laser bifurcation diagrams.
- Power spectrum analysis to quantify noise.
- Numerical simulations using an advanced laser model.
Main Results:
- Experimental evidence of significant noise amplification was observed.
- The amplification occurred in the vicinity of saddle-node, period-doubling, and crisis bifurcations.
- Numerical simulations showed good agreement with the experimental data.
Conclusions:
- Noise amplification is a demonstrable phenomenon in erbium-doped fiber lasers near bifurcations.
- Bifurcation analysis and power spectra are effective tools for studying this effect.
- The advanced laser model accurately predicts the observed experimental behavior.
