All-optical symmetric ternary logic gate

作者：Chattopadhyay Tanay^*

来源：Optics and Laser Technology, 2010, 42(6): 1014-1021.

DOI：10.1016/j.optlastec.2010.01.023

• Optical ternary logic
• Polarization
• Terahertz optical asymmetric demultiplexer (TOAD)

Symmetric ternary number (radix=3) has three logical states ((1) over bar, 0, 1). It is very much useful in carry free arithmetical operation. Beside this, the logical operation using this type of number system is also effective in high speed computation and communication in multi-valued logic. In this literature all-optical circuits for three basic symmetrical ternary logical operations (inversion, MIN and MAX) are proposed and described. Numerical simulation verifies the theoretical model. In this present scheme the different ternary logical states are represented by different polarized state of light. Terahertz optical asymmetric demultiplexer (TOAD) based interferometric switch has been used categorically in this manuscript.

• 出版日期2010-9