
José David Filoteo-RazoAutonomous University of Tamaulipas | UAT · Faculty of Engineering and Sciences
José David Filoteo-Razo
Doctor of Engineering
About
40
Publications
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Introduction
J. D. Filoteo-Razo received the B.Sc. degree in Electronics and Communications Engineering, M.Sc. degree in Electrical Engineering and Ph.D. degree in Electrical Engineering from the DICIS, University of Guanajuato, Mexico. His current research interests include fiber optic communications, lasers and optoelectronic devices for fiber optics.
Publications
Publications (40)
The color of oranges originates from carotenoids, which are natural pigments ranging from yellow to red color and is indicative of the sugar level and degree of ripeness. During the degreening process, the fruit quality can deteriorate, which is manifested as insufficient ripeness and sugar (sucrose) content. Therefore, in this study, we have desig...
This work shows a study of pressure gas sensing using an optical fiber interferometer inside a gas cell; here, a thin-core fiber modal interferometer (TCFMI) is fabricated using two distinct types of fiber, a single-mode fiber (SMF model 1060XP) and thin-core fiber (TCF model 460 HP). This interferometric structure is set into a ring fiber laser wi...
The use of sensors to detect or measure ripening changes in fruit is a growing area of interest to the scientific community. Colorimeters are commonly employed for color and shade identification; however, their usage to measure the color parameters of fruit rinds based on image analysis can be expensive. This article presents a non-invasive and low...
Nonlinear optical loop mirrors (NOLMs) are used in modern fiber optic devices and optical communications. In this study, we present numerical analyses of the multiple variables involved in the operation of an NOLM in low- and high-power transmissions. The Jones matrix formalism was used to model linear and circular polarization inputs. We used thre...
In this work, we develop experimentally a Fabry-Perot fiber optic interferometer applied to the measurement of autocorrelation of complex dynamic pulses generated by a figure-eight fiber laser. The principle is based in the superposition of multiple pulses, which requires two partially reflecting flat surfaces in parallel, resulting in a simple and...
Advances in fiber technology have enabled the integration of plastic optical fibers (POFs) with light-emitting diodes (LEDs) for the development of simple, cost-effective, and sensitive sensing systems. The aim of this study was to develop a low-cost device for measuring adulteration in liquids. We present a low-cost optoelectronic system based on...
In this paper, the performance of a switchable multi-wavelength Er–Yb-doped fibre ring laser incorporating a comb filter is described. The comb filter was developed by using the double-pass Mach–Zehnder interferometer with a Sagnac interferometer (DMZI–SI) arranged in series, a 10-m-long PANDA-type polarisation-maintaining optical fibre, and polari...
In this paper, we propose a fiber optic system to measure the changes in the RGB composition of light in liquid solutions using a plastic optical fiber (POF) as an intrinsic sensor. The measurement system is composed of a 3 W white light-emitting diode as the light source, a 20 cm long U-shaped POF, and an RGB photodiode array that allows us to det...
In this paper, we present a numerical analysis of a novel comb filter in a double-pass Mach–Zehnder interferometer and a Sagnac interferometer (DP-MZI–SI) configuration and verify it by partial experimental demonstration. The proposed filter comprises an in-line fibre polarisation controller (PC), positioned in one arm of the Mach–Zehnder interfero...
In this paper, we proposed a system to integrate optical and electronic instrumentation devices to predict a mode-locking fiber laser response, using a remote data acquisition with processing through an artificial neural network (ANN). The system is made up of an optical spectrum analyzer (OSA), oscilloscope (OSC), polarimeter (PAX), and the data a...
Abstract
We present a passively mode-locked all-fibre ring laser, working in the near-infrared region. The
burst of multiple pulses generation is achieved by modifying the transmission output of the
saturable absorber. Consequently, multiple modes are stimulated within the laser cavity and
multiple wavelengths of operation from 1038 to 1082 nm are...
We study numerically supercontinuum generation (SCG) in four different 10-cm-long photonic crystal fibers (PCFs) at 800 nm and ~1060 nm, whose parameters are found in the literature, comparing the performance of noise-like pulses (NLPs) and ultrashort pulses (USPs) as the pump. Averaging hundreds of spectra produced by NLPs from two passively mode-...
The development and implementation of continuous-wave (CW) or pulsed lasers has become essential in all areas of science and engineering. In the case of pulsed lasers, their emission period is commonly set up by the length of the laser cavity, which implies that it is necessary to replace the whole laser or modify the cavity to change the repetitio...
This paper presents the design of a graphical user interface (GUI) to observe polarization states changes of a standard single-mode optical fiber (SMF-28) that has twisted. By means of GUI we can control the input polarization state of the SMF-28 through the polarization ellipse parameters: its tilt and the phase shifting between electric fields or...
This work is devoted to investigate solutions to RC circuits using four different types of time fractional diferential operators of order 0 < γ ≤ 1. The fractional derivatives considered are, Caputo, Caputo-Fabrizio, Atangana-Baleanu and the conformable derivative. It is shown that Atangana-Baleanu fractional derivative (non-local), and the conform...
An analysis of the effects of the evolution of the polarization states on an Erbium doped fiber is presented; this it to optimize the development tunable fiber laser systems. In this research, we study the polarization state effects of the pumping source for linear and Circular Polarization, as well as the effect produced by the evolution of the po...
We report the implementation of the RK4IP method for studying the propagation of a hyperbolic secant pulse into 10 km of standard fiber. The results describe the appearance of chaotic phenomena in the spectral broadening.
In this work, multi-parameter fiber optic sensing setup is demonstrated by the simultaneous analyses of curvature and transversal load. The experimental arrangement operates by using two compact all fiber Fabry-Perot interferometers. Using a 2x1 optical fiber coupler the reflected interference patterns provided by each interferometer are combined,...
We propose the use of a figure eight fiber laser cavity in fundamental and harmonic mode-locking noise-like pulsing regimes, with output pulse energies as high as 302.8 nJ, as an improved supercontinuum source. The absence of a polarizer in the laser setup, so that the state of polarization along the cavity is not restricted, allows enhanced perfor...
In this work, we study the changes of polarization at different wavelengths in a supercontinuum source generated through a microchip laser in the IR spectrum. We use a microchip laser pulsed as pumped source, 1064 nm of wavelength, and a photonic crystal fiber by generated a supercontinuum spectrum. We twist the fiber to the purpose to induce biref...
In this work we show the changes of polarization at different wavelengths in the end of a photonic crystal fiber (PCF) by means bandpass filters in a supercontinuum light source. A linear and circular polarization was introduced in a piece of PCF, showing the changes of the polarization for each wavelength of each one of the filters from 450 to 700...
In this work an optical sensing setup is designed and implemented to estimate the ripening in fruits. Here by white light reflected signal the color fruit can be calculated to provide information about the fruit condition. The main components in the proposed system are red, green and blue (RGB) module, photodetector and an optical plastic fiber. Mo...
This paper presents the experimental results obtained in the development of novel optical fiber lasers architectures operating in continuous-wave and pulsed regimes. The first laser shown is an actively Q-switched operating at 1565 nm with a double-clad fiber doped with Er³⁺/Yb³⁺, pulse widths in the order of hundreds of ns, repetition rate from 20...
In this work, we performed a numerical analysis of the supercontinuum spectrum generation in a couple of photonic crystal fibers with different structure. The proposed configuration initially has an input pulse with hyperbolic secant profile to generate noise-like pulses as output signal, by the Runge-Kutta method (RK4IP). By using the same configu...
In this work supercontinuum generation by twisting solid core photonic crystal fiber and pulsed source at 532nm is presented. Besides, ellipticity study for different filters and its relation with the supercontinuum results is discussed.
Ring self-Q-switched Er3+/Yb3+ fiber laser operated at 1565 nm is presented. The configuration has: high efficient (~62%), high output power (10 W) and short pulses generation (ns), allowing a stable multiple pulsing regime.
This paper presents the design and implementation of an optical sensor to detect color changes in fruit by means of white light reflection to measure fruit ripeness in industrial and agricultural applications. The system consists of a LED RGB array including photodetectors, a power source and plastic optic fiber (POF). By means of Labview ® graphic...
We study a passively mode-locked double-clad Erbium-Ytterbium fiber ring laser producing noise-like pulse through nonlinear polarization evolution and polarization selection. Single noise-like pulsing is only observed at moderate pump power. As pump power is increased, and through polarization controllers adjustments, harmonic mode-locking of growi...
In this paper we show experimental results based on the study of a supercontinuum light source
whose spectral width can be tuned in a range from ~748 nm to over 1420 nm while it maintains a
good flatness. The proposed configuration for the supercontinuum source was developed using a
relatively short piece of photonic crystal fiber (PCF) as the nonl...