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pro vyhledávání: '"Jassim Kadim Hmood"'
Autor:
Jassim Kadim Hmood
Publikováno v:
Engineering and Technology Journal, Vol 29, Iss 15, Pp 3172-3184 (2011)
In this paper, a design of optical filters based on single mode-multimode-single mode fiber structure (SMS) is demonstrated. The multimode interference effect can be utilized to design wavelength-selective devices with high extinction ratio. The prop
Externí odkaz:
https://doaj.org/article/664428e0e52f4e418c95101623ab676a
Autor:
Jassim Kadim Hmood, Alaa Hussein Ali
Publikováno v:
Engineering and Technology Journal, Vol 29, Iss 13, Pp 2756-2764 (2011)
In this paper, a new design of high negative dispersion optical fiber is introduced.The generalized analysis of multiple-clad cylindrical dielectric structures with step index profiles is presented. The design is focused on quadrature-clad fibers. Th
Externí odkaz:
https://doaj.org/article/d577c8b901524c2f90656f900009fdba
Autor:
Jassim Kadim Hmood, Bushra R. Mahdi
Publikováno v:
Engineering and Technology Journal, Vol 28, Iss 16, Pp 5256-5270 (2010)
In this paper the study of Frequency Modulation (FM) mode-locking fiber laser is presented. The time-domain ABCD law was employed to clarify the impacts of optical elements on the mode-lock pulses. ABCD matrices formalism in the time domain has been
Externí odkaz:
https://doaj.org/article/95b379cd0d70420b826b0450c0f12222
Publikováno v:
Engineering and Technology Journal, Vol 28, Iss 7, Pp 1408-1415 (2010)
The aim of this research is to examine experimentally the laser pulsetransmittance in graded index optical fiber. However attention is paid on the evaluationof intermodal dispersion. Four signals (λ=680nm and power= 0.1mW) of differentfrequencies (1
Externí odkaz:
https://doaj.org/article/b96865bcacbe4d6eab4613d8bd53845f
Publikováno v:
Engineering and Technology Journal, Vol 27, Iss 15, Pp 2878-2884 (2009)
A laser power comparator prototype that can be utilized in laboratories has been designed constructed and tested. The system consists of three main electronic circuits: the laser comparator electronic circuit, sign detector and phase inverting circui
Externí odkaz:
https://doaj.org/article/e4538cb1af5d400a8645b828b9680c5a