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Kaisar R. Khan

Kaisar R. Khan. Ph. D (EE) Candidate University of Central Florida. Believe. Professionalism Innovation Integrity Honesty Patience. EDUCATION. Ph. D, (Expected date of Graduation Fall 2007) University of Central Florida MSEE, The University of Texas at El Paso

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Kaisar R. Khan

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  1. Kaisar R. Khan Ph. D (EE) Candidate University of Central Florida

  2. Believe • Professionalism • Innovation • Integrity • Honesty • Patience

  3. EDUCATION • Ph. D, (Expected date of Graduation Fall 2007) University of Central Florida • MSEE, The University of Texas at El Paso • M. Eng, Bangladesh University of Engineering and Technology, Dhaka. • B. Sc. Eng., Bangladesh Institute of Technology, Rajshahi

  4. Research Area: High speed electronics and optical communication Major Advisor: Dr. Thomas Wu Dept. of ECE, UCF

  5. THESIS • Effect of ASE noise on reference and M-QAM signals in a fiber-optic link with EDFA, MS thesis at UT El Paso Advisor: Mehdi Shadaram, Professor and Head, Dept. of ECE, UTEP • Expected energy generation of two area interconnected system with jointly owned units, M. Eng. thesis at BUET Advisor: Quamrul Ahsan, Professor and Dean, Faculty of ECE, BUET • Digital design of a dc motor speed controller, senior project conducted at BIT, Rajsahi

  6. TEACHING EXPERIENCE • Teach under graduate courses and Labs in the area of telecommunication, microprocessor, electronic, and networking as GTA/Adjunct Lecturer/Lecturer for more than 6 years.

  7. LAB • Electronics 2 (EEL4309) at UCF • Analog Filter Design (EEL 4140 ) at UCF • Analog Devices Lab (EEL 1070C )at Florida Technical College • Measurement Laboratory (EE 221 ), at CCNY • Tool Skills Laboratory (EM 130) at NY City Tech • Electronics Laboratory at UTEP • Microprocessors at UTEP • Telecomm Laboratory at BUET

  8. Lecture • EEL4205 (Electric Machinery) at UCF • EEL 1070C: Analog Devices and Operation at Florida Technical College • MAT1001:Remedial Math course at BMCC • Electromagnetic at BIT , Rajshahi • Electrical Machines at BIT, Rajshahi

  9. PROJECT PROPOSAL • 189K Digital telephone installation project in Bangladesh, Submitted to the government of Bangladesh. • Dynamic Magneto Transport Effect on Semiconductor Material, Kaisar Khan and Thomas Wu, submitted to SATOP. • Remote RF Measurements for Pipeline Monitoring, (FloWatch Phase II), Jie Chen, Kaisar Khan and Thomas Wu, submitted to Emtel, Melbourne, Florida. • RF sensor design for remote gas pipeline monitoring system, Kaisar Khan, Yupeng Chen and Thomas Wu, submitted to Emtel, Melbourne, Florida.

  10. JOURNAL PUBLICATIONS • Kaisar R. Khan, H. Kabir, T.X. Wu, S. M Shamim Hasan and Mehdi Shadaram. “Performance evaluation of Multi-wavelength M-QAM signal transmitted through fiber optic link with EDFA” Journal of Optical Fiber Technology, Elseiver Publication, July 2004, pp 266-274. • Md. Kaisar R Khan, FM Atiq, H. Kabir and S. M Shamim Hasan, “Performance evaluation of 64-MQAM signal transmitted through fiber optic link with fiber amplifier”, November 2003, IEB Journal of Electrical Engineering, Dhaka, Bangladesh. • Md. Kaisar R Khan, Q. Ahsan and M. R Bhuiyan, “Expected Energy Production Cost of Two Area interconnected Systems with Jointly Owned Units” Electric Power System Research journal (Elseiver), April 2004.

  11. CONFERENCE PROCEEDINGS • Jie Chen, Kaisar Khan, Thomas X. Wu, M. Auerbach, Larry Mertens, Don Wilson, and Jim Houyouse, “RFLoss Measurement of Pipeline Security Monitoring System” Presented in IEEE APS/URSI annual meeting, July 2005, Washington D.C • K. Khan, T. Wu, Y. Lu and S.T. Wu, “Liquid Crystal all optical switches”, Presented in IEEE APS/URSI annual meeting, June 2004, Monterey, CA • Md. Kaisar R Khan, Q. Ahsan and M. R Bhuiyan, “Expected Energy Generation of Two Geographically Isolated Area System with Jointly Owned Units”, Presented third International Conference on Renewable Energy for Sustainable Development, October 2003,Dhaka, Bangladesh • K. Khan, M. Rahman , Xiang li and M. Potasek “Effects of Pulse Separation and Bit-Rate in Multi-Terabit/sec All-optical Waveguide Switches” Presented at OSA conference on laser and optics, October 5 -9, Tucson, Arizona. • Md. Kaisar R Khan and Mehdi Shadaram “Performance Evaluation of M-QAM Fiber Optic Link with EDFA” Proceeding of Communication Systems, Networks and Digital Signal Processing Symposium, July 15-17, 2002, Stafford shire university UK, pp. 140-143. • Md. Kaisar R Khan and Mehdi Shadaram, "Effect of amplified spontaneous emission noise on the phase of reference signals transmitted through fiber amplifiers," ICAPT 2002, Quebec City, Canada, June 2002.

  12. PROFESSIONAL TRAINING • GTA Certification course, Faculty resources center, UCF, Spring, 2005 • Laboratory safety orientation course, UT El Paso, 2000 • Management training for the government officers in Bangladesh, Aug. –Dec. 1998 • Two month on job attachment to a satellite earth station at Dhaka, Bangladesh, May 99 to July 99 • Training on SPC digital switching system in Bangladesh, February 1999 • Industrial attachment on video system to Philips Bangladesh Ltd., Dec 93 to Jan 94

  13. GRADUATE COURSES More than twenty-four graduate courses taken in the areas of : • RF and Optical fiber communication • Laser and Optoelectronic • Semiconductor devices and VLSI design • Telecommunication and Networking • Wireless communication etc

  14. Research Activities

  15. RF loss measurement of pipeline Kaisar Khan, Jie Chen, Satish Valenkar and Dr. Thomas Wu

  16. RF loss measurement

  17. RF Loss Measurement of Gas Pipe (I) • Baseline Test Set Model Impedance transformer Coax to WG transformer g/4 Short Circuit Matched Load Receiver Section (B) Transmitter Section (A) Section of Pipe (P)

  18. Receiver Section (B) Transmitter Section (A) RF Loss Measurement of Gas Pipe (II) • Transmitter Section: • Receiver Section: • Total S-parameter: where;

  19. 40mm a1 = 2.5 mm b1 = 5.75 mm a2 = 5 mm b2 = 11.5 mm a3 = 7.5 mm b3 = 17.3 mm a4 = 11.4 mm b4 = 26.25 mm 30mm 30mm 30mm a2 a1 b1 a3 b3 a4 b4 b2 3mm 31.6mm 31mm 31.4mm 33mm

  20. Probe depth of penetration to launch RF waves Short Circuit L 2g P Coax – Waveguide Adapter Design • Operating frequency: 1.3 GHz • Medium inside the waveguide: Air • Dielectric in coaxial line: Air Theoretical simulation results: Reflection (dB) Reflection (dB) Distance P (m) Probe Length L (m)

  21. Frequency Dependant Attenuation

  22. 1.2 GHz Transceiver Design Kaisar Khan, Yupeng Chen and Dr. L. Marten UCF and Emtel Inc.

  23. System Overview : Flow Watch Monitoring System Sensor System Breach Pipeline RF signal

  24. Signal/Noise ratio (SNR) as a function of distance for (a) demonstration system and (b) operational system

  25. Transceiver Block Diagram

  26. Magneto Static Analysis of PMSM using FEM Kaisar Khan, Dr. Tom Wu and Jay Vaidya UCF and Electrodynamics Inc., FL

  27. Geometric Model

  28. Flux line distribution of the proposed motor at (a)150A (b) 650A (b) (a)

  29. Flux density profile of the proposed motor at (a)150A (b) 650A (a) (b)

  30. Torque Profile

  31. Phase Noise in OF Link Kaisar Khan and Dr. Mehdi Shadaram UT El Paso, TX

  32. System Block Diagram

  33. Optical Amplifier in the link

  34. EDFA’s Gain Saturation Characteristics

  35. EDFA’s Wavelength Dependant Gain Characteristics

  36. Phase Noise

  37. QAM Transmission Through OF Link Kaisar Khan and Dr. Mehdi Shadaram UT El Paso, TX

  38. System Block Diagram

  39. Optical Amplifier in the link

  40. EDFA’s Characteristics

  41. EDFA’s Wavelength Dependant Gain Characteristics

  42. Effect of Link Loss

  43. Effect of Amplifier Position 20 dB 40 dB

  44. WDM Application of 16-QAM Signal

  45. Significant Results • ASE noise is the most dominating noise at low and medium link losses, but at very high link losses the thermal noise becomes as a dominating noise. • Higher wavelengths show less degree of saturation and ultimately better BER performance of M-QAM signal. • The receiver amplifier performs better than the other two amplifier positions (power and in-line amplifier) the link at high link losses, because the amplifier placed at the receiver end experience less degree of saturation due to link losses.

  46. Priority • GOD • Health • Family • Work and Education • Social Activity • Entertainment

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