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Hisham, H.K. and Abas, A.F. and Mahdiraji, G.A. and Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd (2015) Optimizing the external optical cavity parameters for performance improvement of a fiber grating fabry-perot laser. Optical Review, 22 (2). pp. 278-288. ISSN 1340-6000, DOI https://doi.org/10.1007/s10043-015-0064-y.
Hisyam, H.K. and Mahdiraji, G.A. and Abas, A.F. and Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd (2014) Linewidth optimization in fiber grating Fabry–Perot laser. Optical Engineering, 53 (2). 026107. ISSN 0091-3286, DOI https://doi.org/10.1117/1.OE.53.2.026107.
Adikan, Faisal Rafiq Mahamd and Hisham, H.K. and Mahdiraji, G.A. and Abas, A.F. and Mahdi, M.A. (2012) Characterization of transient response in fiber grating Fabry–Perot lasers. IEEE Photonics Journal, 4 (6). pp. 2353-2371. ISSN 1943-0655, DOI https://doi.org/10.1109/JPHOT.2012.2231957.
Hisham, H.K. and Abas, A.F. and Mahdiraji, Ghafour Amouzad and Mahdi, M.A. and Noor, A.S.M. (2012) Improving the characteristics of the modulation response for fiber Bragg grating Fabry-Perot lasers by optimizing model parameters. Optics & Laser Technology, 44 (6). pp. 1698-1705. ISSN 0030-3992, DOI https://doi.org/10.1016/j.optlastec.2012.01.027.
Mahdiraji, G.A. and Abas, A.F. (2012) Improving the performance of electrical duty-cycle division multiplexing with optimum signal level spacing. Optics Communications, 285 (7). pp. 1819-1824. ISSN 0030-4018, DOI https://doi.org/10.1016/j.optcom.2011.12.022.
Hisham, H.K. and Mahdiraji, Ghafour Amouzad and Abas, A.F. and Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd (2012) Characterization of Turn-On Time Delay in a Fiber Grating Fabry–Perot Lasers. IEEE Photonics Journal, 4 (5). pp. 1662-1678. ISSN 1943-0655, DOI https://doi.org/10.1109/JPHOT.2012.2214207.
Hisham, H.K. and Abas, A.F. and Mahdiraji, Ghafour Amouzad and Mahdi, M.A. and Noor, A.S.M. (2012) Characterization of phase noise in a single-mode fiber grating Fabry Perot laser. Journal of Modern Optics, 59 (4). pp. 393-401. ISSN 0950-0340, DOI https://doi.org/10.1080/09500340.2011.629060.
Hisham, H.K. and Abas, A.F. and Mahdiraji, Ghafour Amouzad and Mahdi, M.A. and Muhammad Noor, A.S. (2012) Comment on: “Theoretical calculation of turn-on delay time of VCSEL and effect of carriers recombination” [Opt. Laser Technol. 39 (2007) 997–1001]. Optics & Laser Technology, 44 (6). pp. 1995-1998. ISSN 0030-3992, DOI https://doi.org/10.1016/j.optlastec.2012.01.012.
Hisham, H.K. and Abas, A.F. and Mahdiraji, G.A. and Mandi, M.A. (2012) Effect of temperature and external optical feedback on intensity and phase noise characteristics in single-mode fiber grating Fabry-Perot laser. Photonics (ICP). pp. 370-376. ISSN 978146731463,
Basir, S.M. and Mahdiraji, G.A. and Malekmohammadi, A. and Ibrahim, N.H. and Abas, A.F. and Abdullah, M.K. and Mohamed, N. and Idrus, S.M. and Mohammad, A.B. and Harun, H. (2012) Proof-of-concept experiment of duty cycle division multiplexing with bit error rate analysis. Open Electrical & Electronic Engineering Journal, 6. pp. 1-6. ISSN 1874-1290,
Hisham, H.K. and Abas, A.F. and Mahdiraji, G.A. and Mahdi, M.A. and Noor, A.S.M. (2012) Relative intensity noise reduction by optimizing fiber grating fabry-perot laser parameters. IEEE Journal of Quantum Electronics, 48 (3). pp. 375-383. ISSN 0018-9197, DOI https://doi.org/10.1109/jqe.2011.2181489.
Hassan, M.R.A. and Tamchek, N. and Abas, A.F. and Johar, R.M. and Adikan, Faisal Rafiq Mahamd (2011) Dual-phase sensing for early detection of prepreg structural failures via etched cladding Bragg grating. Sensors and Actuators A: Physical, 171 (2). pp. 126-130. ISSN 0924-4247,
Seyedzadeh Kharazi, S.M.S. and Amouzad Mahdiraji, G. and Sahbudin, R.K.Z. and Mokhtar, M. and Abas, A.F. and Anas, S.B.A. (2011) Performance analysis of a variable-weight OCDMA system under the impact of fiber impairments. In: Photonics (ICP), 2011 IEEE 2nd International Conference on, 2011.
Mahdiraji, Ghafour Amouzad and Abdullah, M.K. and Mohammadi, A.M. and Abas, A.F. and Mokhtar, M. and Zahedi, E. (2010) Duty-cycle division multiplexing (DCDM). Optics & Laser Technology, 42 (2). pp. 289-295. ISSN 0030-3992, DOI https://doi.org/10.1016/j.optlastec.2009.07.007.
Malekmohammadi, A. and Abdullah, M.K. and Abas, A.F. and Mahdiraji, G.A. (2010) Effect of guard band on the performance of AP-DCDM technique in 40 Gb/s optical fiber communication system. In: Photonics (ICP), 2010 International Conference on, 2010.
Al-Alimi, A.W. and Al-Mansoori, M.H. and Abas, A.F. and Mahdi, M.A. and Ajiya, M. and Adikan, Faisal Rafiq Mahamd (2010) Efficient technique for intracavity loss optimization in a dual-wavelength erbium-doped fiber laser. Laser Physics, 20 (11). pp. 2001-2005. ISSN 1054-660X,
Malekmohammadi, A. and Al-Mansoori, M.H. and Mahdiraji, G.A. and Abas, A.F. and Abdullah, M.K. (2010) Performance enhancement of absolute polar duty cycle division multiplexing with dual-drive mach zehnder-modulator in 40Gbit/s optical fiber communication systems. Optics Communications, 283 (16). pp. 3145-3148. ISSN 0030-4018, DOI https://doi.org/10.1016/j.optcom.2010.04.026.
Amouzad Mahdiraji, G. and Abdullah, M.K. and Mokhtar, M. and Mohammadi, A.M. and Abas, A.F. and Basir, S.M. and Abdullah, R.S.A.R. (2009) 70-Gb/s amplitude-shift-keyed system with 10-GHz clock recovery circuit using duty cycle division multiplexing. Photonic Network Communications, 19 (3). pp. 233-239. ISSN 1572-8188, DOI https://doi.org/10.1007/s11107-009-0228-4.
Malekmohammadi, A. and Abas, A.F. and Abdullah, M.K. and Mahdiraji, G.A. and Mokhtar, M. and Rasid, M.F.A. (2009) Absolute polar duty cycle division multiplexing over wavelength division multiplexing system. Optics Communications, 282 (21). pp. 4233-4241. ISSN 0030-4018, DOI https://doi.org/10.1016/j.optcom.2009.07.049.
Malekmohammadi, A. and Abdullah, M.K. and Mahdiraji, G.A. and Abas, A.F. and Mokhtar, M. and Rasid, M.F.A. and Basir, S.M. (2009) Analysis of return-to-zero-on-off-keying over absolute polar duty cycle division multiplexing in dispersive transmission medium. IET Optoelectronics, 3 (4). pp. 197-206. ISSN 1751-8768, DOI https://doi.org/10.1049/iet-opt.2008.0050.
Basir, S.M. and Mahdiraji, G.A. and Malekmohammadi, A. and Ibrahim, N.H. and Abas, A.F. and Abdullah, M.K. (2009) Demonstration of duty cycle division multiplexing with bit error rate estimation. In: Communications (MICC), 2009 IEEE 9th Malaysia International Conference on, 2009.
Mahdiraji, G.A. and Abdullah, M.K. and Mokhtar, M. and Malekmohammadi, A. and Abas, A.F. (2009) Duty-cycle-division-multiplexing: bit error rate estimation and performance evaluation. Optical Review, 16 (4). pp. 422-425. ISSN 1340-6000, DOI https://doi.org/10.1007/s10043-009-0081-9.
Malekmohammadi, A. and Mahdiraji, G.A. and Abas, A.F. and Abdullah, M.K. and Mokhtar, M. and Rasid, M.F.A. (2009) Realization of high capacity transmission in fiber optic communication systems using absolute polar duty cycle division multiplexing (AP-DCDM) technique. Optical Fiber Technology, 15 (4). pp. 337-343. ISSN 1068-5200, DOI https://doi.org/10.1016/j.yofte.2009.03.001.
Mahdiraji, G.A. and Malekmohammadi, A. and Abas, A.F. and Mokhtar, M. (2009) A novel economical duty cycle division multiplexing with electrical multiplexer and demultiplexer for optical communication systems. International Journal of Information and Communication Technology, 2 (1). pp. 31-40. ISSN 1466-6642, DOI https://doi.org/10.1504/IJICT.2009.026427.
Al-Alimi, A.W. and Al-Mansoori, M.H. and Abas, A.F. and Mahdi, M.A. and Adikan, Faisal Rafiq Mahamd and Ajiya, M. (2009) A stabilized tunable dual wavelength erbium-doped fiber laser with equal output power. Laser Physics, 19 (8). pp. 1850-1853. ISSN 1054-660X,
Malekmohammadi, A. and Abdullah, M.K. and Mahdiraji, G.A. and Abas, A.F. and Mokhtar, M. (2008) 30Gb/s absolute polar duty cycle division multiplexing in dispersion uncompensated optical systems. In: Telecommunication Technologies 2008 and 2008 2nd Malaysia Conference on Photonics. NCTT-MCP 2008. 6th National Conference on.
Malekmohammadi, A. and Abdullah, M.K. and Abas, A.F. and Mahdiraji, G.A. and Mokhtar, M. (2008) Absolute Polar Duty Cycle Division Multiplexing (APDCDM); technique for wireless communications. In: Computer and Communication Engineering, 2008. ICCCE 2008. International Conference on, 2008.
Abdullah, M.K. and Mahdiraji, G.A. and Abas, A.F. and Mokhtar, M. (2008) Absolute polar duty cycle division multiplexing: an economical and spectral efficient multiplexing technique. In: Wireless and Optical Communications Networks, 2008. WOCN'08. 5th IFIP International Conference on, 2008.
Mahdiraji, G.A. and Abdullah, M.K. and Abas, A.F. and Mokhtar, M. and Mohammadi, A.M. (2008) Analysis of the transmission performance of optical signals based on duty cycle division multiplexing (DCDM). In: Telecommunication Technologies 2008 and 2008 2nd Malaysia Conference on Photonics. NCTT-MCP 2008. 6th National Conference on, 2008.
Mohammadi, A.M. and Abdullah, M.K. and Mahdiraji, G.A. and Abas, A.F. and Mokhtar, M. (2008) Complementary unipolar duty cycle division multiplexing (CUDCDM) technique for wireless communications. In: Proceedings of the Fifth IASTED International Conference on Communication Systems and Networks, 2008.
Malekmohammadi, A. and Abdullah, M.K. and Mahdiraji, Ghafour Amouzad and Abas, A.F. and Mokhtar, M. and Rasid, M.F.A. and Basir, S.M. (2008) Decision circuit and bit error rate estimation for absolute polar duty cycle division multiplexing. International Review of Electrical Engineering, 3 (4). pp. 592-599. ISSN 1827-6660,
Abdullah, M.K. and Mahdiraji, G.A. and Mohammadi, A.M. and Mokhtar, M. and Abas, A.F. (2008) Duty Cycle Division Multiplexing (DCDM); a new electrical multiplexing technique for high speed optical communication systems. In: Telecommunication Technologies 2008 and 2008 2nd Malaysia Conference on Photonics. NCTT-MCP 2008. 6th National Conference on, 2008.
Malekmohammadi, A. and Mahdiraji, G.A. and Abas, A.F. and Abdullah, M.K. and Mokhtar, M. and Fadlee, M. and Rasid, A. (2008) Performance analysis on transmission of multilevel optical pulses using Absolute Polar Duty Cycle Division multiplexing. In: Electronic Design, 2008. ICED 2008. International Conference on, 2008.
Mahdiraji, G.A. and Abdullah, M.K. and Elhag, M.F. and Abas, A.F. and Zahedi, E. and Mokhtar, M. (2007) Duty cycle division multiplexing technique for wireless communications. In: Wireless and Optical Communications Networks, 2007. WOCN'07. IFIP International Conference on, 2007.
Abdullah, M.K. and Abdalla, M.F. and Abas, A.F. and Amouzad, G. (2007) Duty-cycle division multiplexing (DCDM): a novel and economical optical multiplexing and electrical demultiplexing technique for high speed fiber optics networks. In: Wireless and Optical Communications Networks, 2007. WOCN'07. IFIP International Conference on, 2007.
