[1]     Boyd, R. “Nonlinear optics”; Academic Press. 2003.##

[2]     Shen, Y. “Recent advances in nonlinear optics", Rev. of Mod. Phys”; 1976, 48(1), 1.##

[3]     Hnilo, A. A.; Kovalsky, M. G.; Agüero, M. B.; Tredicce, J. R. “Characteristics of the extreme events observed in the Kerr-lens Mode-Locked Ti: Sapphire Laser”; Phys. Rev. A, 2015, 91(1).##

[4]     Sheik-Bahae, M.; Said, A. A.; Hagan, D. J.; Soileau, M. J.; Van Stryland, E. W. “Nonlinear refraction and Optical Limiting in Thick Media”; Opt. Eng. 1991, 30(8), 1228-1235.##

[5]     Salin, F.; Squier, J.; Piché, M. “Mode locking of Ti: Al₂ O₃ Lasers and Self-Focusing: a Gaussian Approximation”; Opt. lett.1991, 16(21), 1674-1676.##

[6]     Brabec, T.; Spielmann, H.; Curley, P. F.; Krausz, F. “Kerr Lens Mode Locking”; Opt. lett. 1992, 17(18), 1292-1294.##

[7]     Cerullo, G. S.; Silvestri, De.; Magni, V. “Self-Starting Kerr-Lens Mode Locking of a Ti: Sapphire Laser”; Opt. lett., 1994. 19(14), 1040-1042.##

[8]     Diels, J. C.; Rudolph, W. “Ultrashort Laser Pulse Phenomena”; Academic Press, (2006).##

[9]     . Chen, S.; Wang, J. "Self-Starting Issues of Passive Self-Focusing Mode Locking”; Opt. lett. 1991, 16(21), 1689-1691.##

[10]  Curley, P.; Ferguson.; A. “Actively Mode-Locked Ti: Sapphire Laser Producing Transform-Limited Pulses of 150-fs Duration”; Opt. lett. 1991, 16(13), 1016-1018.##

[11]  Spence, D. E.; Evans, J. M.; Sleat, WE.; Sibbett, W.; Allen, J. E. “Regeneratively Initiated Self-Mode-Locked Ti: Sapphire Laser”; Opt. Lett. 1991, 16(22), 1762-1764.##

[12]  Sarukura, N.; Ishida, Y.; Nakano, H. “Generation of 50-Fsec Pulses From a Pulse-Compressed, Cw, Passively Mode-Locked Ti: Sapphire Laser”; Opt. Lett. 1991, 16(3), 153-155.##

[13]  French, P.; Williams, J.; Taylor, J. “Femtosecond Pulse Generation from a Titanium-Doped Sapphire Laser using Nonlinear External Cavity Feedback”; Opt. Lett. 1989, 14(13), 686-688.##

[14]  French, P. M. W.; Noske, D. U.; Rizvi, N. H.; Williams, J. A. R.; Taylor, J. R. “Characterisation of a Cw Titanium-Doped Sapphire Laser Mode-Locked with a Linear External Cavity”; Opt. comm. 1991, 83(1), 185-194.##

[15]  Liu, Y. M.; Sun, K. W.; Prucnal, P. R.; Lyon, S. A. “Simple Method to Start and Maintain Self-Mode-Locking of a Ti: Sapphire Laser”; Opt. lett. 1992, 17(17), 1219-1221.##

[16]  Emmerichs, U.; Bakker, H.; Kurz, H. “Generation of High-Repetition Rate Femtosecond Pulses Tunable in the Mid-infrared”; Opt. comm. 1994, 111(5), 497-501.##

[17]  Radzewicz, C.; Pearson, G. W.; Krasinski, J. S. “Use of ZnS as an Additional Highly Nonlinear Intracavity Self-Focusing Element in a Ti: Sapphire Self-Modelocked Laser”; Opt. comm. 1993, 102(5), 464-468.##

[18]  Liu, Y. M.; Sun, K. W.; Prucnal, P. R.; Lyon, S. A. “Simple Method to Start and Maintain Self-Mode-Locking of a Ti: Sapphire Laser”; Opt. lett. 1992, 17(17), 1219-1221.##

[19]  Emmerichs, U.; Bakker, H.; Kurz, H. “Generation of High-Repetition Rate Femtosecond Pulses Tunable in the Mid-infrared”; Opt. comm. 1994, 111(5), 497-501.##

[20]  Radzewicz, C.; Pearson, G. W.; Krasinski, J. S. “Use of ZnS as an Additional Highly Nonlinear Intracavity Self-Focusing Element in a Ti: Sapphire Self-Modelocked Laser”; Opt. comm. 1993, 102(5), 464-468.##

[21]  Spence, D. E.; Kean, P. N.; Sibbett, W. “60-fsec Pulse Generation from a Self-Mode-Locked Ti: Sapphire Laser”; Opt. lett. 1991, 16(1), 42-44.##

[22]  Asaki, M. T.; Huang, C.; Jianping, D. G.; Kapteyn, Z. H.; et al. “Generation of 11-fs Pulses from a Self-Mode-Locked Ti: Sapphire Laser”; Opt. lett. 1993, 18(12), 977-979.##

[23]  Kafka, J. D. Watts, M. L.; Pieterse, J. W. “Picosecond and Femtosecond Pulse Generation in a Regeneratively Mode-Locked Ti: Sapphire Laser”; IEEE Journal of Quantum Electronics. 1992, 28(10), 2151-2162.##

[24]  Liu, K. X.; Flood, C. J.; Walker, D. R.; Van Driel, H. M. “Kerr Lens Mode Locking of a Diode-Pumped Nd: YAG Laser”; Opt. Lett. 1992, 17(19), 1361-1363.##

[25]  Lee, Y. W.; Yi, J. H.; Cha, Y. H.; Yoo, B. D, “Numerical Analysis of Soft-Aperture Kerr-Lens Mode Locking in Ti: Sapphire Laser Cavities by Using Nonlinear ABCD Matrices”; Journal of the Korean Physical Society. 2005, 46(5), 1131-1136.##

[26]  Rashidian Vaziri, M. R. “Z-Scan Theory for Nonlocal Nonlinear Media with Simultaneous Nonlinear Refraction and Nonlinear Absorption”; Appl. opt. 2013, 52(20), 4843-4848.##

[27]  Kogelnik, H.; Dienes, A.; Shank, C. “Astigmatically Compensated Cavities for CW Dye Lasers”; Journal of Quantum Electronics.1972, 8(3), 373-379.##

[28]  Vaziri, M. R.; Hajiesmaeilbaigi F.; Maleki, M. “New Ducting Model for Analyzing the Gaussian Beam Propagation in Nonlinear Kerr Media and its Application to Spatial Self-Phase Modulations”; Journal of Optics. 2013, 15(3).##

[29]  Saleh, B.; Teich M.; Slusher, R. E. “Fundamentals of Photonics”; Physics Today. 2008, 45(11), 87-88.##

[30]  Milonni, P.; Eberly, J.; Wiley, J.; Sons. Lasers. New York, 1988.##

[31]  Svelto, O.; Hanna, D. C. “Principles of Lasers”; Springe. ( 1976).##

[32]  Meier, B.; Penzkofer, A. “Determination of Nonlinear Refractive Indices by External Self-Focusing”; Appl. Phys. 1989, 49(6), 513-519