Gena Shkred - Academia.edu (original) (raw)

Gena Shkred

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Papers by Gena Shkred

Research paper thumbnail of GPU-assisted simulations of SDM systems

2017 19th International Conference on Transparent Optical Networks (ICTON), 2017

Spatial-Division Multiplexing (SDM) technology aims to overcome capacity limits of single-mode tr... more Spatial-Division Multiplexing (SDM) technology aims to overcome capacity limits of single-mode transmission links. Design and characterization of such ultra-high capacity systems requires numerical techniques capable of dealing with vast amounts of data simulating nonlinear transmission and interaction of signals propagating in numerous spatial channels at different wavelengths, thus imposing serious challenges with respect to both, memory requirements and computation performance. We discuss how massive-parallel computation capabilities of modern Graphical Processing Units (GPUs) can be utilized to develop efficient numerical algorithms and present assessment results for the GPU-assisted SDM-capable implementation in the existing simulation environment of VPItransmissionMaker Optical Systems.

Research paper thumbnail of Parallel simulations of optical communication systems

2014 16th International Conference on Transparent Optical Networks (ICTON), 2014

Research paper thumbnail of Passive mode locking of a femtosecond Ti:sapphire laser with pulsed synchronous pumping by a finite train of picosecond pulses

Quantum Electronics, 1999

An analysis is made, with the aid of the selfconsistent nonlinear ABCD matrix method, of the spec... more An analysis is made, with the aid of the selfconsistent nonlinear ABCD matrix method, of the specific features of the mechanism of passive mode locking of a femtosecond Ti : sapphire laser under conditions of pulsed synchronous pumping. The conditions of stable laser operation are studied. It is proposed to use an additional aperture as an element of negative feedback for the stabilisation of passive mode locking. Practical recommendations concerning the optimisation of a femtosecond laser are given.

Research paper thumbnail of Optimization of multi-pump Raman amplifiers

The utilization of high-gain bandwidth in fiber Raman amplifiers (FRA) requires multiple pumps at... more The utilization of high-gain bandwidth in fiber Raman amplifiers (FRA) requires multiple pumps at different wavelengths and careful adjustment of the individual pump powers [1-2]. Due to the large number of varying, partly unknown parameters, this is only feasible with the help of ...

Research paper thumbnail of Femtosecond pulsed formation dynamics and singularities of mode locking in a pulsed synchronously pumped Ti:sapphire laser

SPIE Proceedings, 1999

ABSTRACT

Research paper thumbnail of GPU-assisted simulations of SDM systems

2017 19th International Conference on Transparent Optical Networks (ICTON), 2017

Spatial-Division Multiplexing (SDM) technology aims to overcome capacity limits of single-mode tr... more Spatial-Division Multiplexing (SDM) technology aims to overcome capacity limits of single-mode transmission links. Design and characterization of such ultra-high capacity systems requires numerical techniques capable of dealing with vast amounts of data simulating nonlinear transmission and interaction of signals propagating in numerous spatial channels at different wavelengths, thus imposing serious challenges with respect to both, memory requirements and computation performance. We discuss how massive-parallel computation capabilities of modern Graphical Processing Units (GPUs) can be utilized to develop efficient numerical algorithms and present assessment results for the GPU-assisted SDM-capable implementation in the existing simulation environment of VPItransmissionMaker Optical Systems.

Research paper thumbnail of Parallel simulations of optical communication systems

2014 16th International Conference on Transparent Optical Networks (ICTON), 2014

Research paper thumbnail of Passive mode locking of a femtosecond Ti:sapphire laser with pulsed synchronous pumping by a finite train of picosecond pulses

Quantum Electronics, 1999

An analysis is made, with the aid of the selfconsistent nonlinear ABCD matrix method, of the spec... more An analysis is made, with the aid of the selfconsistent nonlinear ABCD matrix method, of the specific features of the mechanism of passive mode locking of a femtosecond Ti : sapphire laser under conditions of pulsed synchronous pumping. The conditions of stable laser operation are studied. It is proposed to use an additional aperture as an element of negative feedback for the stabilisation of passive mode locking. Practical recommendations concerning the optimisation of a femtosecond laser are given.

Research paper thumbnail of Optimization of multi-pump Raman amplifiers

The utilization of high-gain bandwidth in fiber Raman amplifiers (FRA) requires multiple pumps at... more The utilization of high-gain bandwidth in fiber Raman amplifiers (FRA) requires multiple pumps at different wavelengths and careful adjustment of the individual pump powers [1-2]. Due to the large number of varying, partly unknown parameters, this is only feasible with the help of ...

Research paper thumbnail of Femtosecond pulsed formation dynamics and singularities of mode locking in a pulsed synchronously pumped Ti:sapphire laser

SPIE Proceedings, 1999

ABSTRACT

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