Dr. Vasily V. Spirin Profile

Dr. Vasily V. Spirin

at CICESE

SPIE Involvement:

Author

Publications (43)

Proceedings Article | 1 April 2020 Presentation + Paper

Active stabilization of the DFB laser injection-locked to an external fiber-optic ring resonator

V. Spirin, J. Bueno Escobedo, K. Panajotov, P. Mégret, D. Korobko, I. Zolotovskii, A. Fotiadi

Proc. SPIE. 11356, Semiconductor Lasers and Laser Dynamics IX

KEYWORDS: Resonators, Fiber optics, Laser applications, Fiber lasers, Semiconductor lasers, Optoelectronics, Laser resonators, Laser stabilization, Feedback loops, Laser optics

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Proceedings Article | 1 April 2020 Presentation + Paper

Spatial-temporal averaging algorithm for improving vibration detection with low-cost phase-sensitive OTDR

C. López-Mercadoa, V. Spirin, J. L. Bueno Escobedo, P. Megret, D. Korobko, I. Zolotovskii, A. Fotiadi

Proc. SPIE. 11354, Optical Sensing and Detection VI

KEYWORDS: Signal to noise ratio, Optical fibers, Detection and tracking algorithms, Polarization, Sensors, Interference (communication), Fiber lasers, Laser stabilization, Spatial resolution, Signal detection

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Proceedings Article | 4 March 2019 Paper

Cost-effective solution for phase-OTDR distributed acoustic/vibration sensing

V. Spirin, C. López-Mercado, J. Jason, J. Bueno-Escobedo, P. Mégret, M. Wuilpart, D. Korobko, I. Zolotovskii, S. Sokolovskii, A. Fotiadi

Proc. SPIE. 10903, Real-time Measurements, Rogue Phenomena, and Single-Shot Applications IV

KEYWORDS: Signal to noise ratio, Fiber optics, Polarization, Sensors, Fiber lasers, Semiconductor lasers, Laser stabilization, Spatial resolution

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Self-injection locking - an efficient method to improve the spectral performance of semiconductor lasers without active stabilization - has already demonstrated its high potential for operation with single-longitude-mode fiber lasers. Recently, we demonstrated that self-injection locking of a conventional DFB laser through an external fiber optic ring cavity causes a drastic decrease of the laser linewidth and makes possible its direct application in a phase-sensitive optical time domain reflectometry (φ-OTDR) acoustic sensor system. Detection and localization of dynamic perturbations in the optical fiber were successfully demonstrated at the distance of 9270 m. However, the ability of the system to restore the perturbating frequency spectrum was not quantified. Here, we have evaluated the performance of a φ-OTDR system for acoustic/vibration measurements utilizing a conventional telecom DFB laser self-stabilized through an external PM optical fiber ring resonator. The use of PM fiber components prevents the polarization mode-hopping that is proved to be a major source of the laser instability, resulting in single frequency laser operation with 6 kHz linewidth. The laser diode current and the laser fiber configuration temperature both have been stabilized with accuracies better than 0.3%. All laser components have been placed into a special insulating box to protect the laser from external perturbations. Under these conditions, the typical duration of laser operation in self-maintaining stabilization regime is ~30 minutes. The laser long-term frequency drift is estimated to be less than ~30 MHz/min. This low-cost solution is directly compared with the use of a commercial, ultra-narrow linewidth (~ 100 Hz) fiber laser implemented into the same setup. Both systems are tested for measurement of the frequency of vibration applied to a fiber at a distance of 3500 m. The obtained SNR value higher than 6 dB demonstrates the ability of the DFB laser to be used in distributed measurements of vibrations with frequencies up to 5600 Hz with a spatial resolution of 10 meters.

Proceedings Article | 9 May 2018 Paper

Modeling of a semiconductor laser coupled to an external fiberoptic ring resonator

Dmitry Korobko, Igor Zolotovsky, Krassimir Panajotov, Vasily Spirin, Andrei Fotiadi

Proc. SPIE. 10682, Semiconductor Lasers and Laser Dynamics VIII

KEYWORDS: Semiconductors, Optical filters, Resonators, Fiber optics, Fiber lasers, Semiconductor lasers, Laser resonators, Laser stabilization, Laser damage threshold, Feedback loops

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Proceedings Article | 9 May 2018 Paper

Cost-effective laser source for phase-OTDR vibration sensing

C. López-Mercado, J. Jason, V. Spirin, J. Bueno Escobedo, M. Wuilpart, P. Mégret, D. Korobko, I. Zolotovskiy, A. Fotiadi

Proc. SPIE. 10680, Optical Sensing and Detection V

KEYWORDS: Signal to noise ratio, Superposition, Laser sources, Resonators, Fiber optics, Fiber lasers, Semiconductor lasers, Laser resonators, Acoustics, Laser systems engineering

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Self-injection locking, an efficient method to improve the spectral performance of semiconductor lasers without active stabilization, has already demonstrated its high potential for operation with single-longitude-mode fiber lasers. Recently, we have demonstrated significant line-narrowing (more than 1000 times) of the conventional low-cost DFB laser locked to an external fiber optic ring resonator. However, dynamical behavior of such a laser exhibits mode-hopping making its applications for distributed acoustic sensing rather questionable. In order to explore capacity of the injection locked laser for a phase-OTDR, we have designed a simple configuration of the injection locking DFB laser and applied it for detection and localization of perturbations with a phase-OTDR based distributed vibration sensor. The conventional DFB laser locked at critical coupling regime through fiber optic ring resonator of 3.75 m length (Free Spectral Range is 54.5 MHz) delivers CW mode-hoping free radiation with a linewidth of about ~5.0 kHz, i.e. ~200 times narrower than the linewidth of free-running laser. In combination with the moving differential processing algorithm such a laser is capable to provide high SNR distributed measurements of vibrations and dynamic strain perturbations. The fiber under test comprises three sections of standard single mode fiber, with a total length of ~4.5 km. Perturbations have been locally implemented into the test fiber at two positions using a shaker and a piezoelectric stretcher, respectively. In the first case, perturbations of the fiber induced by the shaker at a frequency of 815 Hz have been recognized as a peak in the recorded and processed traces with a signalto- noise ratio (SNR) of 12 dB over a 10 m resolution cell. In the second case, dynamical strain induced by the fiber stretcher over 40 m at a frequency of 3 kHz is shown in a similar pronounced peak with a signal-to-noise ratio (SNR) of 11 dB. These signatures are similar to the results obtained with a commercial 1 kHz linewidth laser employed with the same phase- OTDR setup. We believe that proposed solution could be a basis for development of a cost-effective phase-sensitive OTDR for distributed sensing specified for the distance up to tens of kilometers.

Proceedings Article | 26 February 2018 Paper

Fiber laser for application in phase sensitive optical time domain reflectometry

V. Spirin, J. L. Bueno Escobedo, D. Korobko, I. Zolotovskiy, C. López-Mercado, P. Mégret, A. Fotiadi

Proc. SPIE. 10512, Fiber Lasers XV: Technology and Systems

KEYWORDS: Signal to noise ratio, Optical fibers, Superposition, Resonators, Backscatter, Interference (communication), Fiber lasers, Reflectometry, Laser resonators, Laser stabilization

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Proceedings Article | 16 May 2017 Paper

New fiber laser design for application in phase sensitive optical time domain reflectometry

J. L. Bueno Escobedo, V. Spirin, C. López-Mercado, A. Marquez Lucero, P. Mégret, I. Zolotovskii, A. Fotiadi

Proc. SPIE. 10231, Optical Sensors 2017

KEYWORDS: Optical fibers, Laser sources, Resonators, Fiber optics, Sensors, Laser development, Fiber lasers, Reflectometry, Laser resonators, Laser stabilization, Spatial resolution, Acoustics

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Proceedings Article | 4 March 2015 Paper

Self-injection locking of the DFB laser through ring fiber optic resonator

Vasily Spirin, Cesar López-Mercado, José Luis Bueno Escobedo, Alfredo Márquez Lucero, Igor Zolotovskii, Patrice Mégret, Andrei Fotiadi

Proc. SPIE. 9344, Fiber Lasers XII: Technology, Systems, and Applications

KEYWORDS: Optical fibers, Resonators, Fiber optics, Polarization, Fiber lasers, Laser resonators, Telecommunications, Fiber optic communications, Laser optics, Fiber coupled lasers

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Proceedings Article | 7 March 2014 Paper

Adjustment of double resonance in short cavity Brillouin fiber lasers

Cesar López-Mercado, Vasily Spirin, Sergey Kablukov, Ekaterina Zlobina, Igor Zolotovsky, Patrice Mégret, Andrei Fotiadi

Proc. SPIE. 8961, Fiber Lasers XI: Technology, Systems, and Applications

KEYWORDS: Polarization, Scattering, Laser applications, Laser scattering, Single mode fibers, Fiber lasers, Laser resonators, Solids, Q switched lasers, Laser optics

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Proceedings Article | 8 May 2013 Paper

Double-frequency Brillouin fiber lasers

Vasily Spirin, Cesar López-Mercado, Damien Kinet, Ekaterina Zlobina, Sergei Kablukov, Patrice Mégret, Igor Zolotovskiy, Andrei Fotiadi

Proc. SPIE. 8772, Nonlinear Optics and Applications VII

KEYWORDS: Optical fibers, Polarization, Interferometers, Fiber lasers, Semiconductor lasers, Spatial light modulators, Laser resonators, Laser stabilization, Laser optics, Optical isolators

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Proceedings Article | 26 February 2013 Paper

Passively stabilized Brillouin fiber lasers with doubly resonant cavities

Vasily Spirin, Cesar López-Mercado, Damien Kinet, Patrice Mégret, Igor Zolotovskiy, Andrei Fotiadi

Proc. SPIE. 8601, Fiber Lasers X: Technology, Systems, and Applications

KEYWORDS: Polarization, Interferometers, Fiber lasers, Semiconductor lasers, Spatial light modulators, Laser resonators, Laser stabilization, Feedback loops, Laser optics, Optical isolators

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Proceedings Article | 17 May 2011 Paper

Chaotic lasers for elimination of low-frequency fluctuations of backscattered Rayleigh radiation in distributed fiber optical sensors

V. Spirin, C. López-Mercado, S. Miridonov, L. Cardoza-Avendaño, R. López-Gutiérrez, C. Cruz-Hernández

Proc. SPIE. 7753, 21st International Conference on Optical Fiber Sensors

KEYWORDS: Optical fibers, Fiber optics, Scattering, Sensors, Laser scattering, Fiber lasers, Fiber optics sensors, Semiconductor lasers, Rayleigh scattering, Geometrical optics

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Proceedings Article | 16 May 2008 Paper

DFB laser injection locking on Brillouin radiation for probe Stokes generation in distributed fiber optical sensing

Vasily Spirin, Marcial Castro

Proc. SPIE. 7004, 19th International Conference on Optical Fibre Sensors

KEYWORDS: Optical fibers, Optical amplifiers, Optical sensing, Fiber optics, Sensors, Modulators, Fiber lasers, Fiber optics sensors, Signal generators, Oscilloscopes

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Proceedings Article | 12 October 2007 Paper

Autonomous measurement system for localization of loss-induced perturbation based on transmission-reflection analysis

Vasily Spirin, Serguei Miridonov, Enrique Mitrani, Carlos Morales, Mikhail Shlyagin, Marcial Castro, Manuel Manriquez

Proc. SPIE. 6770, Fiber Optic Sensors and Applications V

KEYWORDS: Signal attenuation, Error analysis, Fiber lasers, Fiber optics sensors, Data acquisition, Time metrology, Rayleigh scattering, Connectors, Prototyping, Temperature metrology

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SPIE Journal Paper | 1 April 2005

20-km-length distributed fiber optical loss sensor based on transmission-reflection analysis

Vassili Spirin, Pieter Swart, Anatolii Chtcherbakov, Serguei Miridonov, Mikhail Shlyagin

OE Vol. 44 Issue 04

KEYWORDS: Fiber optics sensors, Sensors, Fiber optics, Temperature metrology, Continuous wave operation, Light sources, Remote sensing, Transducers, Optical fibers, Electrical engineering

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Proceedings Article | 8 March 2004 Paper

Localization of a loss-inducing perturbation with variable accuracy along a test fiber using transmission-reflection analysis

Vasilii Spirin, Francisco Mendieta, Serguei Miridonov, Mikhail Shlyagin, Anatoli Chtcherbakov, Pieter Swart

Proc. SPIE. 5272, Industrial and Highway Sensors Technology

KEYWORDS: Light sources, Continuous wave operation, Reflectivity

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Proceedings Article | 19 November 2003 Paper

Fiber bend losses produced by soft and swellable materials for hydrocarbon detection

Georgina Beltran-Perez, Evgueni Kuzin, Alfredo Marquez-Lucero, Rosa Lopez, Vasilii Spirin

Proc. SPIE. 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life

KEYWORDS: Multimode fibers, Fiber optics, Sensors, Signal attenuation, Polymers, Copper, Single mode fibers, Fiber optics sensors, Prototyping, Liquids

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Proceedings Article | 19 November 2003 Paper

Bragg grating-based interferometric fiber optic sensors

Mikhail Shlyagin, Serguei Miridonov, Ileana Marquez-Borbon, Vasilii Spirin

Proc. SPIE. 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life

KEYWORDS: Digital signal processing, Fiber optics, Fiber Bragg gratings, Interferometers, Sensors, Composites, Reflectivity, Interferometry, Multiplexing, Fiber optics sensors

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Proceedings Article | 30 May 2003 Paper

Resolution limits and efficient signal processing for fiber optic Bragg grating sensors with direct spectroscopic detection

Serguei Miridonov, Mikhail Shlyagin, Vasilii Spirin

Proc. SPIE. 5144, Optical Measurement Systems for Industrial Inspection III

KEYWORDS: Signal to noise ratio, Refractive index, Detection and tracking algorithms, Fiber Bragg gratings, Sensors, Error analysis, Interference (communication), Demodulation, Fiber optics sensors, Signal processing

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SPIE Journal Paper | 1 May 2003

Remote sensing with ultra-low-reflective Bragg gratings written in standard telecommunication fiber

I. Marquez, Mikhail Shlyagin, O. Esteban, Serguei Miridonov, Vasilii Spirine

OE Vol. 42 Issue 05

KEYWORDS: Fiber Bragg gratings, Sensors, Reflectivity, Remote sensing, Backscatter, Telecommunications, Fiber lasers, Modulation, Standards development, Signal detection

Proceedings Article | 9 September 2002 Paper

Transmission/reflection analysis for localization of loss-inducing perturbations in distributed fiber optic sensor based on Rayleigh backscattering

Vasilii Spirin, Francisco Mendieta-Jimenez, Pieter Swart

Proc. SPIE. 4920, Advanced Sensor Systems and Applications

KEYWORDS: Lithium, Backscatter, Sensors, Fourier transforms, Fiber optics sensors, Transducers, Optical isolators

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Proceedings Article | 29 August 2002 Paper

Adaptive interferometer measurement of the piezoelectric and electro-optic coefficients of PZT films

Vasilii Spirin, Francisco Mendieta-Jimenez

Proc. SPIE. 4905, Materials and Devices for Optical and Wireless Communications

KEYWORDS: Thin films, Photodetectors, Mirrors, Ferroelectric materials, Polarization, Interferometers, Interferometry, Platinum, Wireless communications, Electro optics

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Proceedings Article | 28 August 2002 Paper

Experimental study of the photosensitivity of optical fiber

Pieter Swart, Anatoli Chtcherbakov, Mikhail Shlyagin, Vasilii Spirin

Proc. SPIE. 4904, Optical Fiber and Planar Waveguide Technology II

KEYWORDS: Optical fibers, Refractive index, Fabry–Perot interferometry, Fiber Bragg gratings, Interferometers, Sensors, Signal attenuation, Ultraviolet radiation, Hydrogen, Reflectivity

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SPIE Journal Paper | 1 August 2002

Static strain measurement with sub-micro strain resolution and large dynamic range using twin Bragg grating Fabry-Perot sensor

Mikhail Shlyagin, Pieter Swart, Serguei Miridonov, Anatoli Chtcherbakov, I. Marquez Borbon, Vasilii Spirin

OE Vol. 41 Issue 08

KEYWORDS: Sensors, Interferometers, Fiber Bragg gratings, Fiber optics sensors, Temperature metrology, Diodes, Multiplexing, Interferometry, Fabry–Perot interferometers, Fabry–Perot interferometry

Proceedings Article | 27 June 2002 Paper

Distributed excess strain sensor using fiber Bragg gratings

Ileana Marquez Borbon, Mikhail Shlyagin, Serguei Miridonov, Vasilii Spirin, Rosa Lopez

Proc. SPIE. 4694, Smart Structures and Materials 2002: Smart Sensor Technology and Measurement Systems

KEYWORDS: Photodetectors, Light sources, Fiber Bragg gratings, Sensors, Signal attenuation, Polymers, Reflectivity, Fiber optics sensors, Semiconductor lasers, Krypton

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Proceedings Article | 27 June 2002 Paper

Fiber optic sensor for hydrocarbon leak detection and localization based on transmission/reflection analysis

Vasilii Spirin, Rosa Lopez, Mikhail Shlyagin, Serguei Miridonov, I. Marquez, Evgueni Kuzin, Georgina Beltran-Perez, Pieter Swart

Proc. SPIE. 4694, Smart Structures and Materials 2002: Smart Sensor Technology and Measurement Systems

KEYWORDS: Light sources, Fiber optics, Sensors, Signal attenuation, Polymers, Error analysis, Single mode fibers, Fiber optics sensors, Rayleigh scattering, Polymeric sensors

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Proceedings Article | 20 June 2002 Paper

Digital demodulation algorithm for white-light fiber optic interferometric sensors

Serguei Miridonov, Mikhail Shlyagin, Anatolii Khomenko, Vasilii Spirin

Proc. SPIE. 4777, Interferometry XI: Techniques and Analysis

KEYWORDS: Signal to noise ratio, Fiber optics, Sensors, Spectroscopy, Interferometry, Interference (communication), Demodulation, Fiber optics sensors, Signal processing, Charge-coupled devices

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Proceedings Article | 14 February 2002 Paper

Fiber optic sensor activities at Mexican research center CICESE

Mikhail Shlyagin, Serguei Miridonov, Vasilii Spirin

Proc. SPIE. 4578, Fiber Optic Sensor Technology and Applications 2001

KEYWORDS: Polarization, Fiber Bragg gratings, Interferometers, Sensors, Reflectivity, Fourier transforms, Multiplexing, Demodulation, Fiber optics sensors, Temperature metrology

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Proceedings Article | 14 February 2002 Paper

Fiber losses produced by soft and swellable materials for hydrocarbon detection

Evgueni Kuzin, Georgina Beltran-Perez, Jorge Camas-Anzueto, Rosa Lopez, Vasilii Spirin, Alfredo Marquez-Lucero

Proc. SPIE. 4578, Fiber Optic Sensor Technology and Applications 2001

KEYWORDS: Multimode fibers, Fiber optics, Sensors, Signal attenuation, Polymers, Copper, Single mode fibers, Fiber optics sensors, Monochromators, Polymeric sensors

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Proceedings Article | 14 February 2002 Paper

Large-scale sensing arrays based on fiber Bragg gratings

Mikhail Shlyagin, Ileana Marquez Borbon, Vasilii Spirin, Rosa Lopez, Evgueni Kuzin, Manuel Alarcon

Proc. SPIE. 4578, Fiber Optic Sensor Technology and Applications 2001

KEYWORDS: Photodetectors, Light sources, Modulation, Fiber Bragg gratings, Sensors, Reflectivity, Fiber lasers, Fiber optics sensors, Semiconductor lasers, Signal detection

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Proceedings Article | 6 August 2001 Paper

Coherent optical frequency domain reflectometry for interrogation of microbend- and macrobend- based fiber optic hydrocarbon sensors

Rosa Lopez-Gutierrez, Vasilii Spirin, Mikhail Shlyagin, Serguei Miridonov, Ileana Marquez Borbon, Alfredo Marquez-Lucero

Proc. SPIE. 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials

KEYWORDS: Reflectors, Modulation, Fiber optics, Fiber Bragg gratings, Sensors, Signal attenuation, Polymers, Fiber optics sensors, Reflectometry, Neodymium

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Proceedings Article | 6 August 2001 Paper

Static strain measurement with submicro strain resolution and large dynamic range using twin grating Fabry-Perot sensor

Mikhail Shlyagin, Pieter Swart, Serguei Miridonov, Anatoli Chtcherbakov, Ileana Marquez Borbon, Vasilii Spirin

Proc. SPIE. 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials

KEYWORDS: Fabry–Perot interferometers, Fiber Bragg gratings, Interferometers, Sensors, Reflectivity, Interferometry, Multiplexing, Fiber optics sensors, Diodes, Temperature metrology

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Proceedings Article | 8 May 2001 Paper

Differential double Bragg grating sensor for temperature-insensitive strain measurement

Vasilii Spirin, Mikhail Shlyagin, Serguei Miridonov, I. Marquez

Proc. SPIE. 4416, Optical Engineering for Sensing and Nanotechnology (ICOSN 2001)

KEYWORDS: Modulation, Silica, Fiber Bragg gratings, Sensors, Capillaries, Reflectivity, Fourier transforms, Wavelength division multiplexing, Multiplexing, Temperature metrology

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Proceedings Article | 1 March 2001 Paper

Simple and potentially cost-effective demodulation technique for fiber Bragg grating sensor arrays

Mikhail Shlyagin, Vasilii Spirin, Serguei Miridonov, Ileana Marquez Borbon

Proc. SPIE. 4204, Fiber Optic Sensor Technology II

KEYWORDS: Fabry–Perot interferometers, Tunable lasers, Modulation, Fiber Bragg gratings, Sensors, Reflectivity, Multiplexing, Demodulation, Fiber optics sensors, Temperature metrology

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Proceedings Article | 31 August 2000 Paper

Differential twin Bragg grating sensor for temperature and strain gradient measurement

Vasilii Spirin, Serguei Miridonov, Mikhail Shlyagin, I. Marquez, Rosa Lopez-Gutierrez

Proc. SPIE. 4074, Applications of Optical Fiber Sensors

KEYWORDS: Optical fibers, Modulation, Silica, Fiber Bragg gratings, Sensors, Capillaries, Reflectivity, Signal processing, Signal detection, Temperature metrology

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Proceedings Article | 31 August 2000 Paper

Fiber Bragg grating sensor for liquid hydrocarbon detection

Mikhail Shlyagin, Serguei Miridonov, Vasilii Spirin, E. Mitrani, Javier Mendieta

Proc. SPIE. 4074, Applications of Optical Fiber Sensors

KEYWORDS: Fiber optics, Fiber Bragg gratings, Sensors, Polymers, Reflectivity, Demodulation, Fiber optics sensors, Temperature metrology, Liquids, Polymeric sensors

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Proceedings Article | 12 June 2000 Paper

Fiber optic Bragg-grating-based sensor for liquid hydrocarbon leak detection and localization

Vasilii Spirin, Mikhail Shlyagin, Serguei Miridonov, E. Mitrani, Javier Mendieta, Alfredo Marquez-Lucero

Proc. SPIE. 3986, Smart Structures and Materials 2000: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials

KEYWORDS: Fiber optics, Fiber Bragg gratings, Sensors, Polymers, Fiber optics sensors, Chlorine, Temperature metrology, Liquids, Polymeric sensors, Absorption

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Proceedings Article | 31 May 1999 Paper

Measurement of the quadratic electro-optic coefficient of lead zirconate titanate thin film by a two-beam polarization interferometer

Vasilii Spirin, Mikhail Shlyagin, Serguei Miridonov, Kwangsoo No

Proc. SPIE. 3670, Smart Structures and Materials 1999: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials

KEYWORDS: Thin films, Refractive index, Ferroelectric materials, Polarization, Birefringence, Reflection, Interferometers, Electrodes, Kerr effect, Electro optics

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Proceedings Article | 3 February 1999 Paper

Multiplexing of grating-based fiber sensors using broadband spectral coding

Mikhail Shlyagin, Serguei Miridonov, Diana Tentori-Santa-Cruz, Francisco Mendieta-Jimenez, Vasilii Spirin

Proc. SPIE. 3541, Fiber Optic and Laser Sensors and Applications; Including Distributed and Multiplexed Fiber Optic Sensors VII

KEYWORDS: Light sources, Fiber Bragg gratings, Interferometers, Sensors, Composites, Reflectivity, Fourier transforms, Multiplexing, Fiber optics sensors, Signal processing

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Proceedings Article | 21 July 1998 Paper

Adaptive interferometer measurement of the piezoelectric and electro-optic coefficients of the spin-coated PZT thin films

Vasilii Spirin, Changho Lee, Kwangsoo No, Igor Sokolov

Proc. SPIE. 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials

KEYWORDS: Thin films, Photodetectors, Mirrors, Ferroelectric materials, Polarization, Interferometers, Electrodes, Interferometry, Platinum, Electro optics

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Proceedings Article | 15 February 1994 Paper

In-line erbium fiber laser with self-rotation of the ellipse of polarization

Mikhail Petrov, Roman Kiyan, Eugenii Kuzin, Vasilii Spirin

Proc. SPIE. 2073, Fiber Laser Sources and Amplifiers V

KEYWORDS: Fiber amplifiers, Mirrors, Resonators, Polarization, Mode locking, Polarizers, Fiber lasers, Erbium, Picosecond phenomena, Dielectric polarization

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Proceedings Article | 12 July 1993 Paper

Fiber amplifiers for optical information processing systems

Mikhail Petrov, Roman Kiyan, Eugenii Kuzin, Ekaterina Rogacheva, Vasilii Spirin

Proc. SPIE. 1806, Optical Computing

KEYWORDS: Optical fibers, Fiber amplifiers, Refractive index, Optical amplifiers, Optical signal processing, Bismuth, Erbium, Neodymium, Radiation effects, Optical computing

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Proceedings Article | 28 June 1993 Paper

Regeneration of optical signals by fiber logic elements operating through stimulated Raman scattering and development of fiber optic memory

Vladimir Belotitskii, Eugenii Kuzin, Mikhail Petrov, Vasilii Spirin

Proc. SPIE. 1807, Photonic Switching

KEYWORDS: Fiber amplifiers, Logic, Optical amplifiers, Switching, Fiber optics, Scattering, Data storage, Complex systems, Raman scattering, Logic devices

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Showing 5 of 43 publications

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