Application of Quantum Theory to Light Transmission Through Optical Fibre

Author(s)	Dr. Gajendra Prasad Gadkar
Country	India
Abstract	The transmission of light through optical fibre has traditionally been governed by classical electromagnetic theory. However, increasing interest in quantum communication, quantum-limited amplification, and photonic quantum technologies necessitates a quantum mechanical treatment of guided light. This study presents a theoretical investigation into the application of quantum field theory and quantum noise models to light propagation in optical fibres. We formulate a quantized waveguide model, examine decoherence and photon statistics, and analyse implications for quantum communication and sensing. The results demonstrate that quantum theoretical approaches provide deeper insights into noise limits, entanglement preservation, and nonlinear photon interactions, offering pathways for next-generation quantum-enabled fibre networks.
Keywords	electromagnetic theory; quantum field theory; waveguide; Optical fibre.
Published In	Volume 17, Issue 1, January-March 2026
Published On	2026-03-27

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