Tailoring optical pulse transport in a two-mode waveguide coupled with a quantum system

• Published in: APL quantum Vol. 2; no. 2; pp. 026120 - 026120-9
• Main Author: Abdalla, Adam Sulieman
• Format: Journal Article
• Language: English
• Published: AIP Publishing LLC 01.06.2025
• ISSN: 2835-0103; 2835-0103
• DOI: 10.1063/5.0255588

The dynamics of a coherent wave packet traveling through a two-mode waveguide, coupled to a cavity embedded with a two-state quantum system, is analyzed. The guided coherent wave transmission and reflection coefficients, as well as the atom and cavity excitation amplitudes, are solved exactly via a real-space approach. We show that a two-point waveguide coupled to a Rydberg-atom hybrid system can tailor the waveform of the incident coherent pulse wave into other forms by controlling the coupling strength tuning between the waveguide, the cavity, and the atom. Tailoring involves modifying properties such as amplitude, phase, or spectral content based on the quantum system interaction. This phenomenon is different from the situation of the plane wave input, where the transmitted and reflected waves are the plane waves and the same to the incident one. Consequently, we provide an effective method that can be used to tailor pulse-wave propagation to enhance efficient quantum sensitivity in the field of ultrafast photonics devices.