Quasi-periodic route to chaos in erbium-doped fiber laser

• Published in: IEEE journal of quantum electronics Vol. 31; no. 3; pp. 481 - 488
• Main Authors: Sanchez, F., LeFlohic, M., Stephan, G.M., LeBoudec, P., Francois, P.-L.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.03.1995; Institute of Electrical and Electronics Engineers
• Subjects: Chaos; Equations; Erbium-doped fiber lasers; Exact sciences and technology; Fiber lasers; Frequency; Fundamental areas of phenomenology (including applications); Laser excitation; Laser modes; Laser theory; Lasers; Optical fiber polarization; Optical pumping; Optics; Physics; Pump lasers; Optical fibers; Pumping; Solid state lasers; Doped materials; Infrared radiation; Experimental study; Erbium additions; Chaotic systems
• ISSN: 0018-9197; 1558-1713
• DOI: 10.1109/3.364403

We present experimental evidence of quasiperiodic route to chaos in erbium-doped fiber laser operating simultaneously at 1.550 /spl mu/m and 1.536 /spl mu/m. Starting from a CW state for high pumping rates the system becomes T-periodic, 2T-periodic, 3T-periodic and chaotic for decreasing pumping ratios. The low-frequency spectra shows two fundamental frequencies. The nT-periodic regimes correspond to a frequency locking of the low frequency on a subharmonic of the high frequency. An adapted model based on the rate equations is numerically investigated and leads to a good qualitative agreement with the experimental data.< >