Special Studies on

Special Studies on:

Satellite Communications and construction of satellites, RF Engineering & it’s applications, Different types of ground RADARs, Airborne RADARS in aircraft, Radars in Frigates & Ships, EW radar system, Instrument Landing System and its installations

 

 

Some of the Research Publications:

[i] S. Islam and J. E. Carroll,"Warped-mode multiway combline directional couplers", IEE proceedings on Microwaves Antenna and Propagation (UK), Part H, vol 133, April 1986, No. 2, pp. 81-90.

[ii S. Islam and S. Mahdi,"An exact method of designing narrow band elliptic function bandpass filters using stepped digital lines", Electrical and Electronic Engineering Research Bulletin, vol.2, 1980, BUET, Dhaka, pp. 45-50.

[iii]S. Islam and J. E. Carroll,"Dual-function multiway uniform combline directional couplers for application to monopulse feed system", IEE proceedings on MAP (UK), Part H, vol. 134, No 6, December 1987, pp. 481-487.

[iv]  J. E. Carroll and S. Islam,"Versatile multiport coupled combline directional couplers", presented at the IEE colloquium entitled 'Advances in Microwave Filters and Multiplexers' organised by professional group E12 ( Microwave Devices and Technology ) held at Savoy Place, London, UK on 7 May 1987; IEE digest no: 1987/57.

[v]   S. Islam,"The design of microwave forward directional couplers using microstrip comblines", Microwave Journal (USA), vol. 31, No. 11, November 1988, pp. 83-100.

[vi] S. Islam,"Multi-way uniform combline directional couplers for microwave frequencies", IEEE Transactions on Microwave Theory and Techniques (USA), vol. 36. No. 6, June 1988, pp. 985-993.

[vii] S. Islam,"A new analytic design technique for two and three-way warped-mode combline directional couplers", IEEE Transactions on Microwave Theory and Techniques (USA), vol. 37, No. 1, January 1989, pp. 34-42.

[viii] S. Islam,"An analysis and a design technique for microstrip comblines", Microwave Journal (USA), vol. 32, No. 11, November l989, pp. 79-91.

[ix] Saiful Islam and J.E. Carroll,"Multi-way multi-section combline directional couplers", International Journal of Electronics, UK, vol. 69, No. 4, April 1990, pp. 553-562.

[x]  Saiful Islam and J.E. Carroll,"A symmetric quintoplexer using planar microstrip coupled comblines", Proc. of International Conference on Millimeter Wave and Microwave (ICOMM-90) held during 19-21 December 1990 in the Defence Electronics Applications Laboratory Dehradun India, Tata-McGraw-Hill New Delhi, pp. 453-457.

[xi]  Saiful Islam, Michihiko Suhara and Minoru Yamada,"The effect of  optical feedback on pure gain and 'gain plus index' corrugated DFB semiconductor lasers," Fellowship research report 1991, The Matsumae International Foundation, Tokyo, Japan, 1991, pp. 243-264.

[xii]  Michihiko Suhara, Saiful Islam and Minoru Yamada,"Criterion of external feedback sensitivity in DFB Semiconductor Lasers to be free from induced excess intensity  noise", Conference on Lasers and Electro-Optics CLEO '92 held in Anaheim, California during 10-15 May 1992, Technical Digest Series Vol. 12, pp. 304-306.

[xiii] Michihiko Suhara, Saiful Islam and Minoru Yamada,"Criterion of  External Feedback Sensitivity in Index-Coupled and Gain-Coupled DFB Semiconductor Lasers to be Free from Excess Intensity Noise", IEEE Journal of Quantum Electronics, Vol. 30, No. 1, January 1994, pp.3-9.

[xiv] Mohammad F. Alam, Mohammad A. Karim and Saiful Islam,"Dependence of External Optical Feedback Sensitivity on Structural Parameters of  DFB Semiconductor Lasers", Proceedings of the IEEE 1996 National Aerospace and Electronics Conference NAECON 1996 held at Dayton, USA during May 20-23 1996, Vol.2, pp. 670-677.

[xv] Mohammad F. Alam, A. Karim and Saiful Islam,"Effects of  Structural Parameters on the External Optical Feedback Sensitivity in DFB Semiconductor Lasers", IEEE Journal of Quantum Electronics, Vol. 33, No. 3, March 1997, pp.424-433.

[xvi] Mohammad F. Alam, A. Karim and Saiful Islam, “Analysis of  External Optical Feedback Characteristics of Asymmetric, Quarter-wave-shifted, Distributed- feedback Semiconductor Lasers", Applied Optics, USA, Vol. 36, no. 18, June 1997, pp. 4131-4137.

[xvii] Rinku Basak and Saiful Islam, “Achieving High Reflectivity Using GaAs and AlAs Semiconductor DBR Layers and alternatively by Using Amorphous Silicon and SiO2 Dielectric DBR Layers in a VCSEL", The AIUB Journal of Science and Engineering (AJSE), August 2007, Volume 6 No. 1, pp. 1-6.

[xviii] Ashim Kumar Saha and Saiful Islam, “An analytical Model for Determining the Variations of Threshold Current, External Differential Quantum Efficiency and Output Power of a VCSEL Due to External Feedback", The AIUB Journal of Science and Engineering (AJSE), The AIUB Journal of Science and Engineering (AJSE), August 2007, Volume 6 No. 1, pp. 29-34.

[xix] Rinku Basak and Saiful Islam, “Effect of  Refractive Indices of DBR Layers on the Reflectivity of a VCSEL", The AIUB Journal of Science and Engineering (AJSE), August 2008, Volume 7,  No. 1, pp. 7-12.

[xx] Ashim Kumar Saha and Saiful Islam, “Study of the Effects of Injection Current on the Turn-on Delay and Modulation Speed of a VCSEL", The AIUB Journal of Science and Engineering (AJSE), The AIUB Journal of Science and Engineering (AJSE), August 2008, Volume 6 No. 1, pp. 43-48.

[xxi] Rinku Basak and Saiful Islam, “Enhancement of  High Speed Performance of a VCSEL and Reduction of FM Noise”, The AIUB Journal of Science and Engineering (AJSE), August 2009, Volume 8,  No. 1, pp. 19-25.

[xxii] Ashim Kumar Saha and Saiful Islam,“An improved model for computing the reflectivity

of a AlAs/GaAs based distributed bragg reflector and vertical cavity surface emitting laser”, Opt Quant Electron (2009) Vol. 41:DOI 10.1007/s11082-010-9401-3, Springer, New York, 18 July 2010, pp.873–882.

[xxiii] Ashim Kumar Saha and Saiful Islam,“Comparison of  the Variations of Threshold Current, External Differential Quantum Efficiency and Output Power of Different Types VCSEL due to External Optical Feedback”, The AIUB Journal of Science and Engineering (AJSE), August 2009, Volume 8,  No. 1, pp. 35-41.

[xxiv] Mahmoodul Islam, Rinku Basak and Saiful Islam, “Chirp Characteristics of  VCSELs at Different Wavelengths”, The AIUB Journal of Science and Engineering (AJSE), August 2009, Volume 8,  No. 1, pp. 43-48.

[xxv] Rinku Basak and Saiful Islam, “A Design Method for a QW VCSEL for operating at 980nm using In0.2Ga0.8As/GaAs Materials and its Performance Analysis”, The AIUB Journal of Science and Engineering (AJSE), August 2010, Volume 9,  No. 1, pp. 9-15.

[xxvi] Md. Tanvir Arafin , Nazifah Islam, Sourav Roy , Saiful Islam, “Analysis of Terahertz Quantum Cascade Laser for High Temperature Operation”, The AIUB Journal of Science and Engineering (AJSE), August 2010, Volume 9,  No. 1, pp. 33-38.

[xxvii] Rinku Basak and Saiful Islam,”Performance Analysis of a 980 nm In0.2Ga0.8As/GaAs MQW VCSEL Considering Thermal Effect”, The AIUB Journal of Science and Engineering (AJSE), August 2011, Volume 10,  No. 1, pp. 9-14.

[xxviii] Rinku Basak and Saiful Islam, “Optimization of a Near-Infrared 980nm VCSEL for obtaining Improved Modulation Performance”, The AIUB Journal of Science and Engineering (AJSE), August 2012, Volume 11,  No. 1, pp. 9-14.

[xxix] Mahmudul Islam, Md. Mobarak Hossain Polash and Saiful Islam, “A 1250nm IR VCSEL using GaInNAs/ GaAs MQW, AlAs/ GaAs Top and bottom DBR mirrors for All Epitaxial Growth”, The AIUB Journal of Science and Engineering (AJSE), August 2012, Volume 11,  No. 1, pp. 23-30.

[xxx] Samiha Ishrat Islam, Md. Mobarak Hossain Polash and Saiful Islam, “Design of a 460nm Blue VCSEL using InGaN/ InGaN MQW, SiO2/TiO2 top DBR, AlInN/GaN bottom DBR and ITO contact for p-side”, The AIUB Journal of Science and Engineering (AJSE), August 2012, Volume 11,  No. 1, pp. 41-47.

[xxxi] Md. Mobarak Hossain Polash and Saiful Islam, “Integrated 1330nm GaInAs/ GaInP VCSEL with AlGaInAs/ InP Mirror systems optically pumped by an electrically pumped 980nm GaInAs/ AlGaAs  VCSEL with  AlAs/ GaAs mirror systems”, The AIUB Journal of Science and Engineering (AJSE), August 2012, Volume 11,  No. 1, pp. 49-55.

[xxxii] Md. Tanvir Arafin, Nazifah Islam, Sourav Roy and Saiful Islam,” Performance optimization for terahertz quantum cascade laser at higher temperature using genetic algorithm”, Optical and Quantum Electronics, DOI 10.1007/s11082-012-9590-z, Springer, 1 June 2012.

[xxxiii]  Rinku Basak and Saiful Islam,“Effects of Reducing Active Radius on Modulation Performance and Relative Intensity Noise of a Strained In0.2Ga0.8As/GaAs 80A0QW VCSEL”,  Arabian Journal for Science and Engineering, Arab J Sci Eng, DOI 10.1007/s13369-012-0327-x, Springer, October 2012.

[xxxiv] Samiha Ishrat Islam, Md. Mobarak Hossain Polash and Saiful Islam, “An Intra-cavity Bottom Emitting 1325 nm VCSEL using GaInAs / GaInP MQWs and AlGaInAs / InP DBRs for Epitaxial Fabrication”, EDSSC 2012 held during 3-5 December 2012 at Chulalongkorn University, Bangkok Thailand.

[xxxv] Md. Tanvir Arafin and Saiful Islam,” Exploring the Electronic Properties of Relaxed Bilayer Nitrogen-Graphene Alloy Using Density Functional Theory”, Presented at the 7th International Conference on Electrical & Computer Engineering (ICECE) held at Pan Pacific Sonargaon Hotel Dhaka during 20-22 December 2012, Proceedings of the ICECE Conference 2012.

[xxxvi] Arnob Islam, Samiha Ishrat Islam and Saiful Islam, ”Designing an all epitaxial 1,550nm intra-cavity VCSEL using GaInAsN/AlGaInAs in the active region and AlGaAsSb/AlAsSb in top and bottom DBRs”,  Optical and Quantum Electronics, DOI 10.1007/s11082-013-9736-7, Springer, New York 2013, 14 July 2013.

[xxxvii] Arnob Islam, Saiful Islam, Designing a High Speed 1310nm AlGaInAs/AlGaInAs VCSEL using MgO/Si Top DBR and GaInAsP/InP Bottom DBR, American Journal of Optics and Photonics. Vol. 2, No. 3, 2014, pp. 37-44. doi: 10.11648/j.ajop.20140203.14.

[xxxviii] Samiha Ishrat Islam, Arnob Islam, and Saiful Islam, “Integrated Duo Wavelength VCSEL Using an Electrically Pumped GaInAs/AlGaAs 980nm Cavity at the Bottom and an Optically Pumped GaInAs/AlGaInAs 1550nm Cavity on the Top” Hindawi Publishing Corporation International Scholarly Research Notices, Volume 2014, Article ID 627165, 10 pages, http://dx.doi.org/10.1155/2014/627165.

[xxxix] Saiful Islam and Md. Ziaur Rahman Khan,”A review of energy sector of Bangladesh” presented at the 1st International Conference on Energy and Power, ICEP2016, 14-16 December 2016, RMIT University, Melbourne, Australia, Elsevier, ScienceDirect, Energy Procedia 110 ( 2017 ) 611 – 618.

[xxxx] Saiful Islam, “A review on recent growth of electrical power generation and power demand in Bangladesh and some suggestions for combating the upcoming challenges”, presented in the 2nd International Conference on Energy and Power, ICEP 2018, 13–15 December 2018, Sydney, Australia, Energy Procedia 160 (2019) 60-67, Science Direct, Elsevier.