Papers Published

1. Sharma, S; Chakrabarty, K; Roy, S, On designing all-optical multipliers using Mach-zender interferometers, Proceedings 21st Euromicro Conference on Digital System Design, Dsd 2018 (October, 2018), pp. 672-679, IEEE [doi] .
   (last updated on 2022/12/30)

   Abstract:
   In recent years, the design of all-optical circuits has received a great attention among the researchers due to high-speed and low-power characteristics and compatibility with CMOS technology. Some combinational logic circuits like adders, subtractors, multipliers, multiplexers, which are useful in optical communication network in data centers and high-perform computers, have been designed using optical components. There are two different design styles, called as Design1 (based on conventional truth-table based approach) and Design2 (based on binary decision diagram). In this paper, four different all-optical multipliers have been explored for array multiplier and carry save adder (CSA)-based multiplier based on these two design styles, using semiconductor optical amplifier (SOA) based Mach-Zender interferometers (MZIs). Simulation results confirm that MZI-based CSA multiplier Design1) has the lowest optical cost and delay compared to those of other three multiplier designs (CSA multiplier - Design2, array multiplier - Design1, array multiplier - Design2) with a precision of 2 or more bits. Further, the proposed all-optical CSA multiplier designs outperform in terms of both optical cost and delay compared to the state-of-the-art designs of all-optical multipliers.