02196nam a2200301Ia 4500 20250223033131.0 231030s9999 xx 000 0 und d Deposit 530 M.Sc Cai01.24.11.M.Sc.2021.Mo.L Moataz Basione , Laser wavelength comb generation for ultra-dense optical access networks / Moataz Basione ; Yehia Badr , Tawfik Ismail , Hossam Selmy ” توليد الليزر بأطوال موجية مشطيه لالستخدام فيشبكات التوصيل الضوئية فائقة الكثافة 2022. Thesis (M.Sc.)-Cairo University - National institute of laser Enhanced sciences - Department of Engineering Applications of Laser Bibliography: p. 87-90. The optical communication system is consists of source, optical fiber, and detectors. The optical fiber represents transmission media which transport laser from the source to de- tector. The laser is being a carrier for information. Building optical passive network (PON) with low cost (that is mean low number of optical fiber, and optical sources) is being achieved by Wave Division Multiplexer PON (WDM-PON). The WDM-PON in- creases the number of used wavelengths (carriers) and reduces the spaces between them. Establishing PON with capacity reach to thousands end-users and 1 Gbit/s data rate over a single fiber needs new phenomena called Ultra-Dense WDM (UDWDM). The UD- WDM approach can be realized using Optical Frequency Comb (OFC) technique. The OFC is a technique that generates several coherent harmonics of its input signal with very narrow separation. The main parameters of OFC are occupied bandwidth, number of wavelengths, spectral flatness, and Optical Signal to Noise Ratio (OSNR). In this thesis we illustrated new three systems to generate OFC with large number of lines Laser UDWDM Yehia Badr http://172.23.153.220/th.pdf Mohamady TH ddc 164518 164518 rda content text rdamedia Unmediated rdacarrier volume ddc 0 CUCL cl210 2024-02-11 Cai01.24.11.M.Sc.2021.Mo.L 01010110086605000 2023-10-30 00:00:00 TH