2023

• Ikechi Augustine Ukaegbu, Elochukwu Onyejegbu, Francis Mokogwu, and Refik Caglar Kizilirmak “A Cost-effective and Simplified Integrated Simulation and Hands-On Experiments in the of Teaching Electronics Instrumentation and Measurement Laboratory Course,” Accepted, Journal of Higher Education Theory and Practice, November 2023.

• Y. Olzhabay, M. Najwan Hamidi, A. Marzuki, D. Ishak, Annie Ng, and Ikechi A. Ukaegbu, “Performance Evaluation of Emerging Perovskite Photovoltaic Energy Harvesting System for BIPV Applications,” Smart Cities, September 2023.

• Francis Nwose Mokogwu, Arjuna Marzuki, Annie Ng, and Ikechi Augustine Ukaegbu, “CMOS Analog-to-Digital Converter for Perovskite PV Sensing Applications,” IEEE TechRxiv, August 2023.

• Bikash Nakarmi, Hum Nath Parajuli, Aigerim Ashimbayeva, Ikechi Augustine Ukaegbu, and Shilong Pan, “Multiple Chirp LFM Waveforms Generation with Reconfigurable Chirp Rates Using Optical Injection in a Semiconductor Laser,”  Optica (OSA)/IEEE Journal of Lightwave Technology, August 2023

• Bikash Nakarmi, Bai Yan Song, Ikechi Augustine Ukaegbu, and Shilong Pan, “Multi-chirp Piecewise Linear Frequency Modulated Microwave Waveform Generation using a Semiconductor Laser,” IEEE Photonics Technology Letters, May 2023.

2022

• Nazym Alipbayeva, Dauren Beisenbekov, Bikash Nakarmi, and Ikechi Augustine Ukaegbu, “High-speed Thermo-optic Micro Ring Resonator Based Digital Half Adder,” Optics (OSA) Continuum, July, 2022

• Bikash Nakarmi, Chuanqi Fang, Bai yan Song, Xiangchun Wang, Ukash Nakarmi, Ikechi Augustine Ukaegbu, and Shilong Pan, “Photonically Generated Frequency Hopped Linear Frequency Modulated Signal using a DFB Laser,” Optica (OSA)/IEEE Journal of Lightwave Technology, May 2022

• Elochukwu Onyejegbu, Zhazira Zhumabay, Arjuna Marzuki, and Ikechi Augustine Ukaegbu, “A Variable Bandwidth Memristor-Based Legendre Optimum Low-Pass Filter for Radio Frequency (RF) Applications,” Engineering Research, March 2022.

• M. N. Hamdi, A. Marzuki, D. Ishak, M. Salem, M. H. Marzaki, and I. A. Ukaegbu, “Asymmetrical Multilevel Inverter based PV system with Voltage Feedback Control - An Experimental Validation,” Applied Sciences, vol. 12, no. 7, pp. 3581, March 2022.

• Chuanqi Fang, Vivek Raj Shrestha, Ikechi Augustine Ukaegbu, Guanghui Ren, Bikash Nakarmi, Shilong Pan, “A Wideband Filter With High Sidelobe Suppression Based On Double Modulated Grating-Assisted Microring Resonator,” Optics Continuum, vol. 1, no. 4, pp. 623-632, February 2022.

2021

• Hao Chen, Ikechi Augustine Ukaegbu, Bikash Nakarmi, Shilong Pan, “RF Multiplier Based on Harmonic-Locked SMFP-LD and OEO Structure,” IEEE Access, vol. 10, pp. 435-440, December 2021.

• Yerassyl Olzhabay, Annie Ng, and Ikechi Augustine Ukaegbu, “Perovskite PV Energy Harvesting System for Uninterrupted IoT Device Applications,” Energies, Accepted, November 2021.

• Nga T.H.Nguyen, Ikechi Augustine Ukaegbu, Jamshid Sangirov, Mohammad Hashmi, “Ultra-Low Power and Scalable TIA in 0.13um CMOS for Short-Range Optical Interconnects,” IET Journal of Engineering, vol. 2021, no. 5, pp. 295-300,  May 2021.

2020

• Dias Azhigulov, Bikash Nakarmi, and Ikechi Augustine Ukaegbu, “High-speed Thermally Tuned Electro-Optical Logic Gates Using Micro-ring Resonators,” Optical and Quantum Electronics, vol. 52, no. 9, pp. 1-16, September 2020.

• Anusha Vangala, Sachi Pandey, Pritee Parwekar, and Ikechi Augustine Ukaegbu, “Intelligent Authentication Model in a Hierarchical Wireless Sensor network with Multiple Sinks,” International Journal of Natural Computing Research (IJNCR), vol. 9, no.3, July 2020

2019

• Bikash Nakarmi, Ikechi Augustine Ukaegbu, Hao Chen, Yong Hyub Won, Shilong Pan, “Writing 10 Gbps Data Bits with Addressing Using External Cavity Based SMFP-LDs,”  IEEE Journal of Selected Topics on Quantum Electronics, vol. 25, no. 6, pp. 1-9, Nov. 2019.

• Nga T. H. Nguyen, Ikechi Augustine Ukaegbu, Hyo-Hoon Park, “A 30 Gb/s Integrated Receiver Array for Parallel Optical Interconnects,” IET Journal of Engineering, vol. 2019, no. 8, pp. 5375-5378, August 2019.

• Nga T. H. Nguyen, Ikechi Augustine Ukaegbu, Jamshid Sangirov, Hyo-Hoon Park, “Optoelectronic Module with Integrated Transceiver and Mux-Demux for Optical Interconnect Applications,” American Journal of Optics and Photonics, vol. 7, no. 2, pp. 28-32, July, 2019.

• Botazhan Satuyeva, Chingis Sauranbayeva, Ikechi Augustine Ukaegbu, and H. S. V. S. Kumar Nunna, “Energy 4.0: Towards IoT Applications in Kazakhstan,” Procedia Journal of Computer Science, vol. 151, pp. 909-915, May, 2019.

• Amanzhol Daribay, Aidana Serikova, and Ikechi Augustine Ukaegbu, “Industry 4.0: Kazakhstani Industrialization Needs a Global Perspective,” Procedia Journal of Computer Science, vol. 151, pp. 903-908, May, 2019.

2018

• Trong-Hieu Ngo, Ikechi Augustine Ukaegbu, Min-Gun Kim, Hyo-Hoon Park, “A Low-Noise Image Sensor Readout Integrated Circuit with Internal Timing Generator,” IEEE Sensors Letters, vol. 2, no. 4, December 2018.

2017

• Ikechi Augustine Ukaegbu, Mohammad Rakib-Uddin, Jamshid Sangirov, Nga T. H. Nguyen, Tae-Woo Lee, Mu-Hee Cho, Hyo-Hoon Park “Thermal Effect Analysis on Crosstalk and Performance of Optoelectronic Transmitter Modules for Optical Interconnects” Optical and Quantum Electronics, vol. 49, no. 8, pp. 277, August 2017

• Ikechi Augustine Ukaegbu, Mohammad Rakib-Uddin, Jamshid Sangirov, Nga T. H. Nguyen, Tae-Woo Lee, Mu-Hee Cho, Hyo-Hoon Park “Design of Full-duplex and Multifunction Bidirectional CMOS Transceiver for Optical Interconnect Applications” Optical and Quantum Electronics, vol. 49, no. 7, pp. 243, July, 2017

2016

• Jamshid Sangirov, Mohammad Rakib-Uddin, Gulomjon Sangirov, Ikechi Augustine Ukaegbu, Tae-Woo Lee, Hyo-Hoon Park “Optical transceiver with in-chip temperature compensation module design and fabrication” Optical and Quantum Electronics, vol. 48, no. 10, pp. 450, October, 2016.

• Jamshid Sangirov, Mohammad Rakib-Uddin, Gulomjon Sangirov, Ikechi Augustine Ukaegbu, Bikash Nakarmi, Tae-Woo Lee, Hyo-Hoon Park “Design and Analysis of a Multichannel Transceiver for High-Speed Optical Interconnects” Optical and Quantum Electronics, vol. 48, no. 1, pp. 1-14, January, 2016.

2015

• Jamshid Sangirov, Mohammad Rakib-Uddin, Gulomjon Sangirov, Ikechi Augustine Ukaegbu, Tae-Woo Lee, Hyo-Hoon Park “Design and Fabrication of a 10 Gbps Transimpedance amplifier-receiver for Optical Interconnects” Journal of Computational Electronics, vol. 14, no. 3, pp. 669-674, May, 2015.

• Jamshid Sangirov, Mohammad Rakib-Uddin,  Ikechi Augustine Ukaegbu, Tae-Woo Lee, Hyo-Hoon Park “Power Saving Bidirectional Optical Transceiver Design and Fabrication” Optical and Quantum Electronics, vol. 47, no. 8, 3101-3116, May, 2015.

• Jamshid Sangirov,  Ikechi Augustine Ukaegbu, Nga T. H. Nguyen, Tae-Woo Lee, Mu-Hee Cho, Hyo-Hoon Park “Power Saving RX Design for Optical Modules” Journal of Circuit Systems and Computers, vol. 24, no. 7, pp. 1550096, May, 2015.

2014

• Nga T. H. Nguyen, Jamshid Sangirov,  Gwan-Chong Joo,  Byueng-Su Yoo, Ikechi Augustine Ukaegbu, Tae-Woo Lee, Mu-Hee Cho, Hyo-Hoon Park “10 Gbps/ch Full-Duplex Optical Link Using a Single-fiber Channel for Signal Transmission” IEEE Photonics Technology Letters, vol. 26, no. 6, pp. 609-612, January, 2014 .

• Jamshid Sangirov, Gwan-Chong Joo, Jae-Shik Choi, Do-Hoon Kim, Byueng-Su Yoo, Ikechi Augustine Ukaegbu, Nguyen T. H. Nga, Jong-Hun Kim, Tae-Woo Lee, Mu Hee Cho, Hyo-Hoon Park, “40 Gb/s optical subassembly module for a multi-channel bidirectional optical link”, Optics Express, vol. 22, no.2, pp. 1768-1783, January, 2014.

2013

• Jamshid Sangirov, Ikechi Augustine Ukaegbu, Gulom Sangirov, Tae-Woo Lee, Hyo-Hoon Park, “Power-aware transceiver design for half-duplex bidirectional chip-to-chip optical interconnects,” Journal of Semiconductors, vol. 34, no. 12, pp. 125001, December, 2013.

• Nga T. H. Nguyen, Ikechi Augustine Ukaegbu, Jamshid Sangirov, Mu-Hee Cho, Tae-Woo Lee, Hyo-Hoon Park, “Biwavelength transceiver module for parallel simultaneous bidirectional optical interconnections,” Journal of Optical Engineering, vol. 52, no. 12, pp. 120502-120502,  December, 2013

• Nga T.H. Nguyen, Ikechi Augustine Ukaegbu, Jamshid Sangirov, Mu Hee Cho, Tae-Woo Lee, and Hyo-Hoon Park, “0.013 mm2 and low-power 10 Gb/s Transimpedance Amplifier (TIA) for Short-reach Optical Interconnects,” IET Microwaves and Optical Technology Letters, vol. 55, no. 10, pp. 2484 - 2487, May, 2013.

• Ikechi Augustine Ukaegbu, Do-Won Kim, Mu Hee Cho, Tae-Woo Lee, and Hyo-Hoon Park, “Performance Analysis of Vertical and Horizontal Transmitter Array Modules Using Short and Long Wavelength VCSELs for Optical Interconnects,” IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 3, no. 5, pp. 740-748, May, 2013.

• Jamshid Sangirov, Tae-Woan Park, Ikechi Augustine Ukaegbu, Tae-Woo Lee, and Hyo-Hoon Park, “On-chip Temperature Compensation for Optical Transmitter Modules,” IET Electronics Letters, vol. 17, no. 1, pp. 44-49, February, 2013.

• Jamshid Sangirov, Ikechi Augustine Ukaegbu, Tae-Woo Lee, and Hyo-Hoon Park, “10 Gbps Transimpedance Amplifier-Receiver for Optical Interconnects,” Journal of The Optical Society of Korea, vol. 6, Iss. 8, pp. 880-883, February, 2013.

2012

• Ikechi Augustine Ukaegbu, Kwang-Seong Choi, Olim Hidayov, Jamshid Sangirov, Tae-Woo Lee, and Hyo-Hoon Park, “Small Area and High Inductance Semi-Stacked Spiral Inductor with High Q Factor,” IET Microwaves, Antennas and Propagation Journal, vol. 6, Iss. 8, pp. 880-883, July, 2012.

• Jamshid Sangirov, Ikechi Augustine Ukaegbu, Tae-Woo Lee, Mu Hee Cho and Hyo-Hoon Park, “Signal Synchronization using Flicker Reduction and De-noising Algorithm for Video-Signal Optical Interconnect,” ETRI Journal, vol.34, no. 1, pp.122-125, Feb. 2012.

2011

• Ikechi Augustine Ukaegbu, Do-Won Kim, Mu Hee Cho, Tae-Woo Lee, and Hyo-Hoon Park, “2.5 Gb/s/ch Long Wavelength Transmitter Modules for Chip-to-chip Optical PCB Applications,” IEEE Photonics Technology Letters, vol. 23, no. 19, pp. 1403-1405, October, 2011.

• Ikechi Augustine Ukaegbu, Jamshid Sangirov, Mu Hee Cho, Tae-Woo Lee, and Hyo-Hoon Park, “Analytical Model for Crosstalk Analysis of Optoelectronic Transmitter Modules for Optical Interconnetcs,” Journal of Optical Engineering, Vol. 50, no. 7, pp. 075401(1)-(8), July, 2011.

• Ikechi Augustine Ukaegbu and Vladimir Nikolaevich Borodulin, “A Study of the Ferroelectric Properties of PZT-22,” ETRI Journal, vol. 33, no. 1, pp. 132-135, Feb, 2011.

2009

• Trong-Hieu Ngo, Nga T.H. Nguyen, Ikechi Augustine Ukaegbu, Tae-Woo Lee, and Hyo-Hoon Park “Bidirectional CMOS Transceiver with Automatic Mode Control for Chip-to-chip Optical Interconnects,” IEEE Photonics Technology Letters, vol. 21, no. 20, pp. 1241-1243, 2009.

• Trong-Hieu Ngo, Nga T.H. Nguyen, Ikechi Augustine Ukaegbu, Tae-Woo Lee, and Hyo-Hoon Park “Bidirectional CMOS Transceiver with Automatic Mode Control for Chip-to-chip Optical Interconnects,” IEEE Photonics Technology Letters, vol. 21, no. 20, pp. 1241-1243, 2009.