Sharif Digital Repository

Numerical study of index guiding quasi-crystal fibers by employing FEM method

Author

Bahrampour, A.

Publisher

National Institute of Optoelectronics,

Pub. Year

2017

Subjects

Index guiding pcf. / Photonic crystal. / Photonic crystal fiber. / Quasi crystal fiber.

Mode analysis of fiber Bragg grating random lasers in the presence of mode competition

Author

Ghasempour Ardakani, A.

Pub. Year

2012

Subjects

Fiber Bragg grating. / Random laser. / Cross saturation. / Experimental observation. / Governing equations. / Lasing modes. / Mode analysis. / Mode competition. / Numerical calculation. / Pumping rate. / Random lasers. / Theoretical result. / Transfer matrixes. / Fiber Bragg gratings. / Fibers. / Iterative methods. / Laser beams. / Nonlinear equations. / Pumping (laser) / Transfer matrix method.

Theoretical investigation of dielectric corona pre-ionization TEA nitrogen laser based on transmission line method

Author

Bahrampour, A.

Pub. Year

2007

Subjects

Capacitors. / Ionization. / Nonlinear systems. / Problem solving. / Dielectric corona pre-ionization. / Flat-plane transmission. / Transmission line method. / Ultra violet (UV) intensity. / Electric corona.

The theoretical study of an optimal distributed fiber moisture sensor based on the periodic polymer coating

Author

Bahrampour, A.

Publisher

Springer Science and Business Media Deutschland GmbH,

Pub. Year

2021

Spatial resolution enhancement in fiber Raman distributed temperature sensor by employing ForWaRD deconvolution algorithm

Author

Bahrampour, A. R.

Pub. Year

2011

Subjects

Fiber Raman. / ForWaRD. / Resolution enhancement. / Temperature sensor. / Anti-Stokes. / Continuous wave modes. / Counterpropagating. / Deconvolution algorithm. / Distributed temperature sensor. / Fiber impulse response. / Fourier wavelets. / Governing equations. / In-fiber. / Laser sources. / Pulse width. / Pump pulse. / Raman amplifier. / Raman fiber. / Raman signal. / Spatial resolution. / Spatial-resolution enhancement. / Convolution. / Deconvolution. / Image resolution. / Integral equations. / Light amplifiers. / Optical fibers. / Raman spectroscopy. / Temperature sensors. / Fibers.

A proposal for distributed humidity sensor based on the induced LPFG in a periodic polymer coated fiber structure

Author

Dehghani Sanij, M.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Distributed humidity sensor. / Fiber optic sensor. / Humidity sensor. / Optical fiber humidity sensor. / Elastic moduli. / Fiber optic sensors. / Humidity sensors. / Moisture control. / Optical fibers. / Plastic coatings. / Polymers. / Single mode fibers. / Steel fibers. / Humidity sensitive. / Light wavelengths. / Long period fiber grating. / Moisture absorption. / Moisture sensors. / Polymer-coated fibers. / Sensor operations. / Stainless steel mesh. / Fiber Bragg gratings.

Polarization maintaining optical fiber multi-intruder sensor

Author

Bahrampour, A. R.

Publisher

Elsevier,

Pub. Year

2012

Subjects

Intruder detector. / Short Fourier transform denoising. / De-noising. / Denoising methods. / Discrete frequencies. / Fiber loops. / Fiber Sensor. / Finite number. / Fourier. / Local coordinate. / Mode beating spectra. / Optical fiber sensor. / Output signal. / Polarization maintaining optical fiber. / Ramp frequencies. / Sensor resolution. / Polarization-maintaining fiber. / Signal to noise ratio. / Sensors.