All-optical prefix tree adder with the help of terahertz optical asymmetric demultiplexer

作     者：Dilip Kumar Gayen Tanay Chattopadhyay Rajat Kumar Pal Jitendra Nath Roy 

作者机构：Department of Computer Science College of Engineering and Management Kolaghat KTPP Township Mechanical Operation (Stage-II) Kolaghat Thermal Power Station WBPDCL Mecheda Purba Medinipur KTPP Sub Post Office Department of Computer Science and Engineering Calcutta University Department of Physics NIT Agartala 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2011年第9卷第6期

页      面：82-86页

核心收录：

学科分类：0808[工学-电气工程] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：tree All-optical prefix tree adder with the help of terahertz optical asymmetric demultiplexer XOR SOA 

摘      要：We propose and describe an all-optical prefix tree adder with the help of a terahertz optical asymmetric demultiplexer （TOAD） using a set of optical switches. The prefix tree adder is useful in compound adder implementation. It is preferred over the ripple carry adder and the carry lookahead adder. We also describe the principle and possibilities of the all-optical prefix tree adder. The theoretical model is presented and verified through numerical simulation. The new method promises higher processing speed and accuracy. The model can be extended for studying more complex all-optical circuits of enhanced functionality in which the prefix tree adder is the basic building block.