Journal
OPTICS AND LASER TECHNOLOGY
Volume 42, Issue 5, Pages 810-818Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2009.12.009
Keywords
All-optical gates; Mach-Zehnder interferometer; Parallel arithmetic
Categories
Funding
- Kuwait University Research [EE01/08]
Ask authors/readers for more resources
In this paper, we present improved all-optical circuits that implement ultra-fast adders based on the carry-free property of the modified signed-digit (MSD) number representation. The all-optical realizations are based on semiconductor optical amplifier (SOA) and Mach-Zehnder interferometer (MZI) switches, which represent one of the most promising solutions due to their compact size, thermal stability and low power operation. Several all-optical circuit designs are proposed with the objective to minimize the number of the SOA-MZI switches, the time delay in the adders and some other optical elements. The proposed circuits are more efficient comparing to previously published ones in terms of the number of optical components (less by 50%) as well as the operational speed (faster by 50%). (C) 2009 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available