Akbar Ghasemi

Title: The Innovative Contributions of Akbar Ghasemi

Introduction

Akbar Ghasemi is a notable inventor based in Kanata, Canada, recognized for his significant contributions to the field of optical communications. With a total of four patents to his name, Ghasemi has made strides in enhancing communication systems through innovative modulation schemes and data recovery methods.

Latest Patents

Ghasemi's latest patents include groundbreaking technologies that improve the efficiency and reliability of optical communication systems. One of his patents, titled "Variable spectral efficiency optical modulation schemes," describes a transmitter that utilizes a first encoder to apply a shaping operation to a data signal. This process generates a shaped data signal, which is then encoded according to a forward error correction (FEC) scheme. The constellation mapper modulates the encoded signal to produce a symbol stream for transmission, effectively reducing average constellation energy for the modulation scheme.

Another significant patent is "Minimum variance carrier recovery with increased phase noise tolerance." This invention outlines a method for data symbol recovery in a coherent receiver of an optical communications system. It involves processing data symbol estimates from a received optical signal and determining recovered symbol values from these estimates. The method compensates for phase noise that exceeds one decision region of the symbol constellation, enhancing the reliability of data transmission.

Career Highlights

Akbar Ghasemi is currently employed at Ciena Corporation, a leading company in the field of networking and communications. His work at