Paper Info
Title
All-Optical Clocked Flip-Flops Exploiting SOA-Based SR Latches and Logic Gates
Abstract
All-optical flip-flops are key components of photonic digital processing in next generation optical network and computing. In most digital applications, signal synchronization with a reference clock is a basic feature. In this paper, an entire set of all-optical clocked flip-flops, including SR, D, T, and JK types is proposed and demonstrated, each employing a single SR latch and optical logic gates previously introduced in literature. The bi-stable element is based on gain quenching mechanism between SOAs of two coupled fiber ring lasers. Three logic gates are carried out by exploiting four wave mixing (FWM) and cross gain modulation (XGM) nonlinear effects in SOA. Different flip-flop functionalities are obtained by adding one of the logic gates, or a combination of them, to the latch scheme. Performance evaluation in terms of extinction ratio demonstrates the effectiveness of proposed schemes. Speed limitation of flip-flop operation is also investigated and photonic integration is identified as a feasible solution to increase the operation speed beyond GHz.
Year
DOI
Venue
2009
10.1007/978-3-642-10442-8_3
OSC
Keywords
Field
DocType
soa-based sr latches,all-optical clocked flip-flop,cross gain modulation,optical logic gate,flip-flop operation,logic gates,different flip-flop functionalities,digital application,logic gate,operation speed,optical network,all-optical clocked flip-flops exploiting,all-optical flip-flop,four wave mixing,optical amplifier,extinction ratio
Extinction ratio,Synchronization,Logic gate,Pass transistor logic,Electronic engineering,Four-wave mixing,Engineering,Photonics,Electrical engineering,AND gate,Optical computing
Conference
Volume
ISSN
Citations 
5882
0302-9743
0
PageRank 
References 
Authors
0.34
1
5
Name
Order
Citations
PageRank
Jing Wang11038105.16
Gianluca Meloni2157.27
Gianluca Berrettini3144.56
Luca Potì43017.29
Antonella Bogoni5115.16