Abstract
Method of implementation of all-optical multiplexer and demultiplexer is proposed. The basic element used in this proposal is a total internal reflectional switch based on nonlinear materials having negative nonlinear refractive index. As a suitable nonlinear material, polymer 4MBCU(poly[dodecadiyn-1,12-diol-bis(n-butoxycarbonyl-methyl-urethane)]) may be useful to implement these devices. The use of controlling light induces nonlinearity and the path of the input data beam is controlled. The select inputs are in frequency-encoded format and have several advantages. Both 1:4 and 1:9 demultiplexers and 4:1 and 9:1 multiplexers are proposed in frequency-encoded format. As an application, the demultiplexer is used to implement encoder for frequency-encoded decimal numbers. The devices proposed are truly all-optical and use no electronic components for its operation and hence can show ultra-high processing speed.
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Mukherjee, K. Method of implementation and application of all-optical frequency-encoded multiplexer and demultiplexer utilizing total reflectional switches (TRSs). J Opt 49, 102–109 (2020). https://doi.org/10.1007/s12596-020-00595-6
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DOI: https://doi.org/10.1007/s12596-020-00595-6