Intensity-modulation and direct-detection (IM/DD) systems deployed for short reach optical fiber links require electronic dispersion compensation (EDC) at the transmitter and/or electronic equalization at the receiver. Under direct detection, the optical phase is lost and complex-valued compensation of chromatic dispersion (CD) used in coherent systems could not be adopted. In work, a verity of EDC methods will be presented for both directly modulated and externally modulated lasers.
What will audience learn from your presentation?
• Novel DSP implementation of EDC algorithms for intensity modulation and direct detection.
• Audience: Faculty and Graduate Students.
Dr. Abdullah S. Karar, obtained his Ph.D. from Queen's University, Kingston ON, Canada in electrical engineering with focus on digital signal processing for short reach optical fiber communications in 2013. From 2013 to 2014, he was an NSERC Post-Doctoral Fellow in mathematics and statistics researching coherent optical systems and an Adjunct Assistant Professor in electrical engineering. From 2014 to 2018, Dr. A. S. Karar joined Infinera Ottawa, as a Senior/Staff System Design Engineer working on digital signal processing algorithms for coherent optical transceivers. Since 2018, he has joined the American University of the Middle East in Kuwait, where he is currently an Associate Professor. He is a Senior Member of IEEE and a member of OSA. Dr. Karar, has authored over 80 peer reviewed publications in the areas of optical fiber telecommunications and photonics, and holds 6 US patents. Dr. Karar current research involves electronic dispersion compensation in intensity modulation / direct detection systems and novel digital signal processing algorithms for coherent optical communications.