Performance analysis of spectrally encoded hybrid WDM-OCDMA network employing optical orthogonal modulation format against eavesdropper

S Singh, S Singh - AEU-International Journal of Electronics and …, 2017 - Elsevier
In this paper, the spectrally encoded hybrid WDM-OCDMA network employing 60 Gbps non-
return to zero/differential quadrature phase shift keying (NRZ/DQPSK) orthogonally …

Performance analysis of hybrid WDM-OTDM optical multicast overlay system employing 120 Gbps polarization and subcarrier multiplexed unicast signal with 40 Gbps …

S Singh, S Singh - Optics Communications, 2017 - Elsevier
In this paper, we have propose and investigated the performance of hybrid WDM-OTDM
optical multicast overlay system which employs 120 Gbps unicast and 40 Gbps multicast …

A hybrid WDM ring–tree topology delivering efficient utilization of bandwidth over resilient infrastructure

S Singh, S Singh - Photonic Network Communications, 2018 - Springer
This paper proposed a hybrid WDM ring–tree topology which employs spectrally efficient 60
Gbps non-return-to-zero/polarization shift keying optical orthogonal modulated signals. The …

[HTML][HTML] Mode division multiplexing free space optics system with 3D hybrid modulation under dust and fog

M Singh, SN Pottoo, MH Aly, Š Hubálovský… - Alexandria Engineering …, 2023 - Elsevier
Mode division multiplexing (MDM) is an emerging information transmission technique in
which multiple data signals can be transmitted simultaneously on different modes of a single …

On compensation of four wave mixing effect in dispersion managed hybrid WDM-OTDM multicast overlay system with optical phase conjugation modules

S Singh, S Singh - Optical Fiber Technology, 2017 - Elsevier
This paper investigated the effect of FWM and its suppression using optical phase
conjugation modules in dispersion managed hybrid WDM-OTDM multicast overlay system …

Limitations on hybrid WDM/OTDM multicast overlay system imposed by nonlinear polarization effect and its mitigation

S Singh, S Singh - IEEE Photonics Journal, 2017 - ieeexplore.ieee.org
This paper investigates the nonlinear polarization effect of 120-Gbps polarization and
subcarrier multiplexed unicast signal and 40-Gbps multicast signal on transmission …

Novel security enhancement technique against eavesdropper for OCDMA system using 2-D modulation format with code switching scheme

S Singh, R Kaur, A Singh, RS Kaler - Optical Fiber Technology, 2015 - Elsevier
In this paper, security of the spectrally encoded-optical code division multiplexed access
(OCDMA) system is enhanced by using 2-D (orthogonal) modulation technique. This is an …

Investigations on highly sensitive fiber Bragg gratings with different grating shapes for far field applications

G Kaur, RS Kaler, N Kwatra - Optik, 2017 - Elsevier
Abstract The Fiber Brag Grating (FBG) optical sensor is investigated with uniform fiber
grating (UFBG), superstructure fiber Bragg grating (SFBG) and tilted fiber Bragg grating …

Comparative investigations of DWDM transmission system with PMD for different orthogonally modulated signals at 80 Gb/s

R Bhatia, AK Sharma, J Saxena - International Journal of …, 2016 - Wiley Online Library
Polarization mode dispersion (PMD) has become one of the major limiting factors for high‐
bit‐rate optical transmission systems. This paper evaluates the performance of dense …

Performance Investigation of Hybrid Optical CDMA/DWDM System Under the Influence of FWM

N Alsowaidi, T Eltaif, MR Mokhtar - 2023 IEEE 16th Malaysia …, 2023 - ieeexplore.ieee.org
The significance of nonlinear effects arising from inter-and intra-channel four-wave mixing
(FWM) in a hybrid optical code-division multiple-access (OCDMA) and wavelength division …