Dr. Andres González García Profile

Dr. Andres González García

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Publications (9)

Proceedings Article | 18 June 2014 Paper

Laser line wavelength sensor based in a dual-wavelength fiber laser with a Hi-Bi loop Sagnac interferometer

M. Durán Sánchez, R. Álvarez Tamayo, O. Pottiez, E. Kuzin, B. Ibarra-Escamilla, A. González-García, A. Barcelata Pinzón

Proceedings Volume 9098, 909816 (2014) https://doi.org/10.1117/12.2050742

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Temperature metrology, Sagnac interferometers, Optical testing, Reflectors, Sensors, Optical fibers, Monochromators, Transmittance

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Proceedings Article | 8 May 2013 Paper

Polarization properties of vector solitons generated by modulation instability in circularly birefringent fibers

E. Kuzin, A. Flores-Rosas, J. Peralta-Hernandez, B. Villagomez-Bernabe, B. Ibarra-Escamilla, A. Gonzalez-Garcia, O. Pottiez, M. Duran-Sanchez

Proceedings Volume 8772, 877218 (2013) https://doi.org/10.1117/12.2020875

KEYWORDS: Wave plates, Energy transfer, Scanning probe microscopy, Numerical analysis, Modulation, Birefringence, Raman spectroscopy, Optical fibers, Solitons, Polarization

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Common optical fibers are randomly birefringent, and solitons formatting and traveling in them are randomly polarized. However it is desirable to have solitons with a well-defined polarization. We analyzed the two coupled propagation equations in a circularly birefringent fiber. Our equations include SPM, XPM and the soliton self frequency shift. In a difference of previously published works we consider the polarization dependence of the Raman amplification. We have found that the difference between perpendicular and parallel Raman gain results in energy transform from slow to fast circularly polarized component. We have shown this effect analytically and by a numerical simulation. For analytical consideration we performed a transformation of equations which reduces them to a form of perturbed Manakov task. The perturbation method gives us equations for evolution of the polarization state of pulse which show that in a circularly birefringent fiber the cross–polarization Raman term leads to unidirectional energy transfer from the slow circularly polarized component to the fast one. The magnitude of this effect is determined by the product of birefringence and amplitudes of both polarization components. Thus, solitons with any initial polarization state will eventually evolve stable circularly polarized solitons. We also made numerical analysis of two coupled nonlinear Shrödinger equations using a split-step Fourier method. The parameters of a standard fiber were used with delay between left- and right- circular polarizations of 1 ps/km that corresponds to circular birefringence in a fiber twisted by 6 turns/m. Numerical analysis confirms the analytical approximation. We analyzed also the polarization of solitons generated by modulation instability. We used a 30-ps, 40-W pulse with noise imposed on them at the fiber input. We found that polarization ellipticity of solitons is distributed randomly; however the average polarization ellipticity is closer to the circular than the polarization ellipticity of the input pulse. In experiment we used 220-m SMF-28 fiber twisted by 6 turns/m. The fiber was pumped by 1-ns pulse. We have found that at circular polarization of the input pulse solitons at the fiber output have polarizations close to the circular.

Proceedings Article | 12 March 2013 Paper

Polarization stabilization of vector solitons in circularly birefringent fibers induced by Raman effect

E. Kuzin, B. Villagomez-Bernabe, N. Korneev, B. Ibarra-Escamilla, A. Gonzalez-García, O. Pottiez, M. Duran-Sanchez

Proceedings Volume 8604, 86040L (2013) https://doi.org/10.1117/12.2004484

KEYWORDS: Solitons, Polarization, Optical fibers, Birefringence, Raman spectroscopy, Raman scattering, Energy transfer, Dispersion, Scanning probe microscopy, Stochastic processes

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Proceedings Article | 26 February 2013 Paper

Tunable actively Q-switched fiber laser based on fiber Bragg grating

A. González-García, B. Ibarra-Escamilla, E. Kuzin, M. Durán-Sánchez, O. Pottiez, F. Maya-Ordoñez

Proceedings Volume 8601, 86012C (2013) https://doi.org/10.1117/12.2002854

KEYWORDS: Fiber lasers, Fiber Bragg gratings, Pulsed laser operation, Ions, Q switched fiber lasers, Mirrors, Tunable lasers, Erbium, Q switched lasers, Semiconductor lasers

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Proceedings Article | 26 February 2013 Paper

Dual-wavelength fiber laser based on fine adjustment of cavity loss by a fiber optical loop mirror

M. Durán Sánchez, E. Kuzin, B. Ibarra-Escamilla, A. González-García, J. Cruz, M. Andrés, O. Pottiez

Proceedings Volume 8601, 86012G (2013) https://doi.org/10.1117/12.2003064

KEYWORDS: Fiber lasers, Temperature metrology, Fiber Bragg gratings, Fiber optics, Mirrors, Erbium, Sagnac interferometers, Tunable lasers, Laser resonators, Wavelength division multiplexing

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Proceedings Article | 14 October 2010 Paper

Pulses with adjustable characteristics from a figure-eight fiber laser

O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, E. Kuzin, J. C. Hernandez-Garcia, A. Gonzalez-Garcia

Proceedings Volume 7839, 783922 (2010) https://doi.org/10.1117/12.868541

KEYWORDS: Polarization, Switching, Mode locking, Fiber lasers, Pulsed laser operation, Solitons, Wave plates, Continuous wave operation, Mirrors, Nonlinear optics

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Proceedings Article | 14 October 2010 Paper

Comparative analysis of WO3 nanospheres and TiO2 nanotubes as saturable absorber for applications in passive mode-locked laser

P. Zaca-Morán, F. Chavéz, G. Beltrán-Pérez, J. G. Ortega, C. Felipe, O. Goiz, R. Grajales-Coutiño, A. González-García

Proceedings Volume 7839, 78391T (2010) https://doi.org/10.1117/12.868252

KEYWORDS: Particles, Saturable absorption, Optical fibers, Fiber lasers, Nanomaterials, Nanostructures, Mode locking, Picosecond phenomena, Laser applications, Titanium dioxide

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Proceedings Article | 14 October 2010 Paper

Distributed Gires-Tournois etalon-based gain equalizer

A. González-García, O. Pottiez, R. Grajales-Coutiño, J. C. Hernández-García, P. Zaca-Morán

Proceedings Volume 7839, 78391U (2010) https://doi.org/10.1117/12.868254

KEYWORDS: Fiber amplifiers, Optical amplifiers, Cladding, Erbium, Fabry–Perot interferometers, Amplifiers, Wavelength division multiplexing, Fiber Bragg gratings, Wave propagation, Single mode fibers

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Proceedings Article | 17 May 2010 Paper

Novel figure-eight fiber laser scheme including a power-symmetric nonlinear optical loop mirror with adjustable switching power

O. Pottiez, R. Grajales-Coutiño, B. Ibarra-Escamilla, E. Kuzin, J. Hernandez-Garcia, A. Gonzalez-Garcia

Proceedings Volume 7721, 77210A (2010) https://doi.org/10.1117/12.853920

KEYWORDS: Switching, Polarization, Mode locking, Pulsed laser operation, Solitons, Fiber lasers, Wave plates, Mirrors, Continuous wave operation, Picosecond phenomena

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Showing 5 of 9 publications

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