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Transphasor: A Photonic Transistor
Naveen Gupta

A review on a new class of transistor switches based on light instead of electronic current has been presented. Transistors are the basic building block of modern microprocessors. However, maximum speed limit of even the fastest electronic transistor in the range of few nanoseconds the overall efficiency of electronic microprocessors has gotten into a bottleneck. The only solution for this is to replace electronic current with some other kind of signal capable of carrying information through the circuits. The best candidate for this purpose is light. Operational principle of optical transistor has been discussed in detail. Application of optical transistor as logic gates has also been discussed in detail.

Keywords: Transistor, Photonics, Kerr Effect, Nonlinear Optics, Fabry Perot Interferometer