Beam Dynamics in a Double-Channel Waveguide with Gain and Loss

Pengfei Li; Rujiang Li; Lu Li

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arXiv · 1209.2762

Beam Dynamics in a Double-Channel Waveguide with Gain and Loss

Pengfei Li·Rujiang Li·Lu Li

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Abstract

A double-channel waveguide with gain and loss is addressed and the corresponding coupled-mode equations are established by employing the coupled mode approach. Based on the coupled-mode equations, the beam dynamics in the double-channel waveguide with gain and loss is investigated, and the results show that there exist three distinct dynamical behaviors, which are amplification, attenuation to zero and tending to a steady value (or equilibrium state), respectively. Finally, it is shown that the theoretical results suggested by the coupled-mode equations agree well with the numerical simulations.

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Pengfei Li, Rujiang Li, Lu Li. 2012-09-13. Beam Dynamics in a Double-Channel Waveguide with Gain and Loss. https://arxiv.org/abs/1209.2762

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