Abstract

This paper presents a model describing self-mode locking (SML) and sustained self-pulsing (SSP) in a unidirectional ring-fiber laser using only the interaction between the saturated population inversion and the optical signal circulating in the laser cavity. Gain saturation alone is used to explain SML behavior close to laser threshold and the sharp transition to an SSP regime. The model also describes self-pulsing inhibition to the profit of SML for a sufficiently high pump power. Experimental results agree with most model predictions, but the overestimation of the self-pulsing threshold suggests that the phenomenon is furthered by an effect other than gain saturation.

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Opt. Lett. (6)

Other (20)

B. Ortac, A. Hideur, T. Chartier, M. Brunel, G. Martel, M. Salhi and F. Sanchez, "Influence of cavity losses on stimulated Brillouin scattering in a self-pulsing side-pumped ytterbium-doped double-clad fiber laser", Opt. Commun., vol. 215, pp. 389-395, 2003.

H. Po, E. Snitzer, R. Tumminelli, L. Zenteno, F. Hakami, N. M. Cho and T. Haw, "Double clad high brightness Nd fiber laser pumped by a GaAlAs phased array", in Optical Fiber Communication Conf. Tech. Dig., 1989, Paper PD7.

G. P. Agrawal, Nonlinear Fiber Optics, 2nd ed. San Diego, CA: Academic, 1995.

L. M. Frantz and J. S. Nodvik, "Theory of pulse propagation in a laser amplifier", J. Appl. Phys., vol. 34, pp. 2346-2349, 1963.

A. E. Siegman, 10.1 Lasers, Sausolito, CA: University Science, 1986.

C. R. Giles and E. Desurvire, "Modeling erbium-doped fiber amplifiers", J. Lightw. Technol., vol. 9, no. 2, pp. 271-283, Feb. 1991.

F. Brunet, Y. Taillon, P. Galarneau and S. LaRochelle, "Practical design of double-clad ytterbium-doped fiber amplifiers using Giles parameters", IEEE J. Quantum Electron., vol. 40, no. 9, pp. 1294-1300, Sep. 2004.

R. Wyatt, "Spectroscopy of rare-earth doped fibers," in Optical Fiber Lasers & Amplifiers, P. W. France, Eds. Boca Raton, FL: CRC, 1991, pp. 96-104.

A. Johnstone, W. Lu, J. S. Uppal and R. G. Harrison, "Sustained and bursting oscillations in stimulated Brillouin scattering with external feedback in optical fiber", Opt. Commun. , vol. 81, pp. 222-224, 1991.

R. Paschotta, J. Nilsson, P. R. Barber, J. E. Caplen, A. C. Tropper and D. C. Hanna, "Lifetime quenching in Yb-doped fibers", Opt. Commun., vol. 136, pp. 375-378, 1997.

M. Dinand and C. Schütte, "Theoretical modeling of relaxation oscillations in Er-doped waveguide lasers", J. Lightw. Technol., vol. 13, no. 1, pp. 14-23, Jan. 1995.

R. Rangel-Rojo and M. Mohebi, "Study of the onset of self-pulsing behavior in an Er-doped fiber laser", Opt. Commun., vol. 137, pp. 98-102, 1997.

S. D. Jackson, "Direct evidence for laser reabsorption as initial cause for self-pulsing in three-level fiber lasers", Electron. Lett., vol. 38, pp. 1640-1642, 2002.

A. Hideur, T. Chartier, C. Özkul and F. Sanchez, "Dynamics and stabilization of a high power side-pumped Yb-doped double-clad fiber laser", Opt. Commun., vol. 186, pp. 311-317, 2000.

J. L. Zyskind, V. Mizrahi, D. J. DiGiovanni and J. W. Sulhoff, "Short single frequency erbium-doped fiber laser", Electron. Lett., vol. 28, pp. 1385-1387, 1992.

P. Le Boudec, M. Le Flohic, P. L. François, F. Sanchez and G. Stephan, "Self-pulsing in Er3+-doped fiber laser", Opt. Quantum Electron., vol. 25, pp. 359-367, 1993.

F. Fontana, M. Begotti, E. M. Pessina and L. A. Lugiato, "Maxwell-Bloch modelocking instabilities in erbium-doped fiber lasers", Opt. Commun., vol. 114, pp. 89-94, 1995.

P. Le Boudec, P. L. Francois, E. Delevaque, J.-F. Bayon, F. Sanchez and G. M. Stephan, "Influence of ions pairs on the dynamical behavior of Er3+-doped fiber laser", Opt. Quantum Electron., vol. 25, pp. 501-507, 1993.

F. Sanchez, P. Le Boudec, P.-L. Francois and G. Stephan, "Effects of ions pairs on the dynamics of erbium-doped fiber lasers", Phys. Rev. A, Gen. Phys., vol. 48, pp. 2220-2229, 1993.

S. D. Jackson and T. A. King, "Dynamics of the output of heavily Tm-doped double-clad silica fiber lasers", J. Opt. Soc. Amer. B, Opt. Phys., vol. 16, pp. 2178-2188, 1999.

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