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Nat Comput (2010) 9:903916
DOI 10.1007/s11047-009-9162-8
Goutam Kumar Maity Tanay Chattopadhyay Dilip Kumar Gayen Chinmoy Taraphdar Anup Kumar Maiti Santi Prasad Maity Jitendra Nath Roy
Published online: 21 September 2009 Springer Science+Business Media B.V. 2009
Abstract The memory device is very important as they store various values either temporary or permanently. Optical ip-op memories form a fundamental building block for all-optical packet switches in the next generation communication networks. All-optical ip-op memory with the help of Terahertz Optical Asymmetric Demultiplexer (TOAD) is proposed and described. Principles and possibilities of all-optical circuits for TOAD based SR, JK, D and T ip-op are reported. Numerical simulation conrming described method is also given in this paper.
Keywords All-optical ip-op Optical switch Terahertz Optical Asymmetric
Demultiplexer (TOAD)
G. K. Maity
Calcutta Institute of Technology, Uluberia, Howrah, West Bengal, India
T. Chattopadhyay A. K. Maiti J. N. Roy (&)
Department of Physics, College of Engineering and Management, Kolaghat KTPP Township, Midnapur (East) 721171, West Bengal, Indiae-mail: [email protected]
T. Chattopadhyaye-mail: [email protected]
D. K. Gayen
Department of Computer Science, College of Engineering and Management, Kolaghat KTPP Township, Midnapur (East) 721171, West Bengal, India
C. Taraphdar
Department of Physics, Bankura Christian College, Bankura, West Bengal, India
S. P. Maity
Department of Information Technology, Bengal Engineering College and Science University, Shibpur, Howrah, West Bengal, India
All-optical binary ip-op with the helpof Terahertz Optical Asymmetric Demultiplexer
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1 Introduction
All-optical switchingthe switching of one beam of light by anotheris an absolutely essential technology for transparent ber optic networks and for all forms of optical signal processing (Hardy and Shamir 2007; Dolev et al. 2008; Yu et al. 2001; Agrwal 2001; Karim and Awal 1992; Zavalin et al. 2006). In order to overcome the electronic bottlenecks and fully exploit the advantages of bers, it is necessary to move towards networks, where the transmitted data will remain exclusively in the optical domain without optical electrical optical (OEO) conversions (Zoiros et al. 2004). Those switches whose output power can be latched in one of two states, commonly referred to as optical ip-ops, promise to be important for signal-processing applications that require a memory of the past signals. Ultra-fast all-optical buffers/memories are key modules for the implementation of optical time division multiplexing (OTDM)...