Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Raad Sami Fyath"'
Autor:
Hayder Maki Hamodi, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 27, Iss 2 (2024)
A high-performance Mach-Zehnder interferometer (MZI) based all-optical switch using graphene on silicon nitride (Si3N4) is proposed and simulated. Graphene absorbs pump power (λ = 980 nm) on Si3N4 waveguide, generating heat. The heat affects the Si3
Externí odkaz:
https://doaj.org/article/79376804f0474646a788885831d061ee
Autor:
Arwa A. Moosa, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 27, Iss 1 (2024)
This paper discusses the development of a seven-band coherent wavelength-division multiplexing (WDM) system covering the T to U systems, aiming to enhance the capacity and system efficiency. Seven multiband systems (C+L, S+C+L, S+C+L+U, E+S+C+L, E+S+
Externí odkaz:
https://doaj.org/article/add7e1edf62d46e4ad7623644b5b17ed
Autor:
Ayam M. Abbass, Raad Sami Fyath
Publikováno v:
Results in Optics, Vol 15, Iss , Pp 100629- (2024)
Geometric constellation shaping (GCS) has been proposed to enhance the performance of wavelength-division multiplexing (WDM) coherent optical fiber communication (OFC) systems. This paper presents a comprehensive simulation platform to design and sim
Externí odkaz:
https://doaj.org/article/fa766992919948d4a60eb8391b5e9610
Publikováno v:
Al-Iraqia Journal for Scientific Engineering Research, Vol 2, Iss 1 (2023)
Image security has attracted increasing interest, wherein image encryption is an effective and direct method that can be implemented using digital, optical, or hybrid techniques. The challenge is how to design a high-speed, and high-security level mu
Externí odkaz:
https://doaj.org/article/4b1a414c669e4d419f3bc70cb373319b
Autor:
Arwa Moosa, Raad Sami Fyath
Publikováno v:
مجلة النهرين للعلوم الهندسية, Vol 26, Iss 1 (2023)
Recently, there is increasing interest in using the 18 THz bandwidth offered by S+C+L band to increase the transmission capacity of fiber communication systems. This leads to the generation of ultra-wideband (UWB) wavelength-division multiplexing (WD
Externí odkaz:
https://doaj.org/article/1360a1aeb40749c791a9c2f02bbcefd0
Autor:
Arwa A. Moosa, Raad Sami Fyath
Publikováno v:
2022 Iraqi International Conference on Communication and Information Technologies (IICCIT).
Autor:
Ali Saadi Abed, Raad Sami Fyath
Publikováno v:
2022 Iraqi International Conference on Communication and Information Technologies (IICCIT).
Autor:
Arwa A. Moosa, Raad Sami Fyath
Publikováno v:
Optik. 276:170641
Publikováno v:
Engineering and Technology Journal, Vol 28, Iss 24, Pp 6986-6994 (2010)
The design issues for a current injection vertical cavity surface-emitting lasers (VCSEL) operating at 1550 nm is presented using photonic crystal (PC) technology. The design is based on PC slab containing multihole rings with a single defect is intr
Externí odkaz:
https://doaj.org/article/319c7de3b04944cfbc5d826677741918
Publikováno v:
Proceedings of the International Conference on Information and Communication Technology.
Design of a new miniaturized FF-PIFA (Folded Fractal Planar Inverted F-antenna) with dual-band resonant behavior is introduced in this paper for use in the dual-band WLAN MIMO (multi-input multi-output) applications.Firstly, the fourth iteration Koch