He was born in Calera, Zacatecas. He studied up to high school in the city of Fresnillo, Zac. In 1993 he received the degree of Engineer in Electronics and Communications at the Autonomous University of Zacatecas. In 1995 he completed the degree of Master of Science (Optics) at the Center for Research in Optics (CIO). In 1995-1996 he held a pre-doctoral fellow in the laboratory of micro-devices of the Polaroid Corporation in the United States. In 1999 he received the degree of Doctor of Science (Optics) in the CIO, which integrates him as technical-academic that year. In the period 2000-2001 he held a postdoctoral fellowship at the University of Illinois at Urbana-Champaign, IL, USA. At the end of the stay, Dr. Mejia is repatriated and incorporated to work in the group of optical fibers at CIO as a researcher. Since then he has directed five projects supported by external institutions (CONACYT and CONCYTEG), he currently leads one. He has taught undergraduate and graduate level courses; he has also directed two doctoral dissertations, two master's degree and four bachelor's degrees. Member of the Academic Committee at CIO during 2002-2003.
Research Interests:
- Current work is defined primarily as Research on Materials and Optical Fibers for Developing Devices, Novel Illuminating Sources and Lasers. Optical fiber based Lasers and Devices are mainly studied.
Recent publications:
2021
- Oscar J. Ballesteros-Llanos, Efraín Mejía-Beltrán, Maribel Juárez-Hernández. Hybrid (Raman-
Ytterbium) ring-cavity fabry-perot-filtered fiber laser. Optical Fiber Technology, Volume 67
(2021), 102693, ISSN 1068-5200, https://doi.org/10.1016/j.yofte.2021.102693
- Lelio de la Cruz-May, Efraín Mejía Beltrán, Olena Benavides and Rafael Sanchez Lara. Analysis of
Energy Transfer among Stokes Components in Raman Fiber Lasers. Chapter 6 in “Application of
Optical Fiber in Engineering” (2021), ISBN 978-1-83962-615-9,
https://mts.intechopen.com/storage/books/10415/authors_book/authors_book.pdf
2020
2017
2016
- O Benavides, L de la Cruz May, E B Mejia, J A Ruz Hernandez, A Flores Gil. Laser wavelength effect on nanosecond laser light reflection in ablation of metals. Laser Physics, Volume 26, Number 12. https://doi.org/10.1088/1054-660X/26/12/126101
- M Juárez-Hernández, E B Mejía, L de la Cruz-May and O Benavides. Stokes-to-Stokes and anti-Stokes-to-Stokes energy transfer in a Raman fibre laser under different cavity configurations. Laser Physics, Volume 26, Number 11. http://iopscience.iop.org/article/10.1088/1054-660X/26/11/115105
2015
- E. B. Mejía and L. de la Cruz-May. Spectral changes produced by an adjustable intra-cavity Fabry–Perot interferometer inside an ytterbium-doped fiber laser Laser Physics, Volume 25, Number 9, 095101 F.I.: 1.032 DOI:10.1088/1054-660X/25/9/095101
2014
- E.B. Mejía, L. de la Cruz-May and J.F. Vásquez-Jiménez, Temperature control of power distribution on the Stokes components of a Raman fiber laser, Laser Physics 24, 055103(2014).
2013
- E.B. Mejía, L. De la Cruz May, and D.V. Talavera, Shortening of a Raman fiber laser by inserting ytterbium doped fiber, IOSR Journal of Engineering (IOSRJEN) 3, 38 (2013).
- L. de la Cruz-May, E. B. Mejía, O. Benavides, J. Vásquez Jiménez, J. Castro-Chacón and M. May-Alarcón, Novel Technique for Obtaining the Raman Gain Efficiency of Silica Fibers, IEEE Photonics Journal 5, 6100305 (2013).
- L. de la Cruz-May, E.B. Mejía, O. Benavides, D.V. Talavera and J. Vasquez-Jimenez, Exact determination of scaling of the Raman gain efficiency in silica fibers, Laser Physics 23, 055103 (2013).
2012
- Efraín Mejía-Beltrán, Rare-Earth Doped Optical Fibers, In book: Selected Topics on Optical Fiber Technology, Chapter 1 (2012).
2011
- L. de la Cruz-May, A. Flores Gil, E.B. Mejía, J.H Rodríguez-Rodríguez, J.A. Álvarez Chávez, Transparency powers levels in Yb3+-doped fiber due to temperatura changes, Optical Fiber Technology 17, 108 (2011).
- L. de la Cruz-May, J.A. Álvarez-Chávez, E.B. Mejía, A. Flores-Gil, F. Mendez-Martinez, S. Wabnitz, Raman threshold for nth-order cascade Raman amplification, Optical Fiber Technology 17, 214 (2011).
2009
- Efraín Mejía and Víctor Pinto, Optically controlled loss in an optical fiber, Optics Letters 34, 2796 (2009)
- M. E. Sánchez, G.V. Vázquez, E.B. Mejía, H. Márquez, J. Rickards, R. Trejo, Laser emission in Nd: YVO4 channel waveguides at 1064 nm”, Applied Physics B: Laser and Optics 94, 215 (2009).
