Joint examinations of optical pulse reflectometers of various kinds for early diagnostics and detection of “problem” sections in optical fibers

2016 ◽  
Author(s):  
Igor V. Bogachkov ◽  
Nicolay I. Gorlov
Keyword(s):  
Optical Fibers ◽  
Optical Pulse ◽  
Early Diagnostics

scholarly journals Amplification of Frequency-Modulated Similariton Pulses in Length-Inhomogeneous Active Fibers

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
I. O. Zolotovskii ◽  
D. I. Sementsov ◽  
A. A. Sysolyatin ◽  
A. S. Belanov ◽  
M. S. Yavtushenko
Keyword(s):  
Group Velocity ◽  
Optical Fibers ◽  
Optical Pulse ◽  
Velocity Dispersion ◽  
Group Velocity Dispersion ◽  
Normal Group ◽  
The Self ◽  
Similar Frequency ◽  
Pulse Amplification ◽  
Self Similar

The possibility of an effective gain of the self-similar frequency-modulated (FM) wave packets is studied in the length-inhomogeneous active fibers. The dynamics of parabolic pulses with the constant chirp has been considered. The optimal profile for the change of the group-velocity dispersion corresponding to the optimal similariton pulse amplification has been obtained. It is shown that the use of FM pulses in the active (gain) and length-inhomogeneous optical fibers with the normal group-velocity dispersion can provide subpicosecond optical pulse amplification up to the energies higher than 1 nJ.

scholarly journals IMPROVEMENT OF DEVICES FOR EARLY DIAGNOSTICS OF THE OPTICAL FIBERS STATE OF TELECOMMUNICATIONS SYSTEMS

2020 ◽  
Vol 8 (4) ◽  
pp. 105-112
Author(s):  
I. V. Bogachkov ◽  
◽  
N. I. Gorlov ◽  
Keyword(s):  
Optical Fibers ◽  
Early Diagnostics

В работе обсуждаются вопросы построения схем бриллюэновских рефлектометров, рассмотрены алгоритмы обработки результатов измерений. Представленные в исследовании результаты позволяют улучшить алгоритмы обработки бриллюэновских рефлектограмм за счёт введения опорных каналов и опорной базы данных. Приведённые схемы бриллюэновских рефлектометров представляют интерес для совершенствования систем мониторинга оптических волокон.

SCHRÖDINGER SYSTEMS ARISING IN NONLINEAR OPTICS AND QUANTUM MECHANICS: PART I

2012 ◽  
Vol 22 (07) ◽  
pp. 1250010 ◽  
Author(s):  
H. HAJAIEJ
Keyword(s):  
Quantum Mechanics ◽  
Nonlinear Optics ◽  
Optical Fibers ◽  
Optical Pulse ◽  
Pulse Propagation ◽  
Ferromagnetic Film ◽  
Uniqueness Of Solutions ◽  
Optical Pulse Propagation ◽  
Schrödinger Systems ◽  
Nonlocal Nonlinearities

In this first part, we study the existence and uniqueness of solutions of a general nonlinear Schrödinger system in the presence of diamagnetic field, local and nonlocal nonlinearities. This kind of systems models many important phenomena in nonlinear optics; multimodal optical fibers, optical pulse propagation, ferromagnetic film and optical pulse propagation in the birefringent fibers. They also govern the interaction of electron and nucleii through Coulombic potential and under the action of external magnetic field in quantum mechanics.

scholarly journals All-optical pulse-train generation and distributed sensing through the temporal analogue of a laser

2021 ◽  
Author(s):  
Alexis Cristian Sparapani ◽  
Germán Fernández ◽  
Alfredo Sánchez ◽  
Juan Bonetti ◽  
Nicolás Linale ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Optical Pulse ◽  
Group Velocity Dispersion ◽  
Laser Cavity ◽  
Distributed Sensing ◽  
Pulse Trains ◽  
Reflection And Refraction ◽  
Optical Generation ◽  
All Optical ◽  
Pulse Train Generation

Abstract We propose a novel scheme for the all-optical generation of pulse trains in optical fibers based on the reflection and refraction of pulses at a time boundary, and the temporal analogue of a laser cavity with gain. Furthermore, this scheme is shown to provide an original and simple way to measure distributed fiber parameters. In particular, we put forth an application of the temporal laser to the distributed sensing of the fiber group-velocity dispersion parameter.

Monitoring and methods of early diagnostics of damage to optical fibers

2010 ◽  
Vol 53 (5) ◽  
pp. 495-501 ◽  
Author(s):  
Yu. A. Palchun ◽  
N. Yu. Sitnov ◽  
N. I. Gorlov
Keyword(s):  
Optical Fibers ◽  
Early Diagnostics
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