Photonics Research, Volume. 5, Issue 2, 57(2017)
General coupled-mode analysis of a geometrically symmetric waveguide array with nonuniform gain and loss
Fig. 1. Schematic of the proposed structure consisting of four coupled waveguides in a square array and the coupled-mode schemes supported in this structure. (a) Top view of the cross section profile, (b)–(e) four coupled-mode fashions between the modes supported in the diagonal (A) and off-diagonal waveguides (B). The geometrical parameters are
Fig. 2. Propagation constants
Fig. 3. Propagation constants as a function of
Fig. 4. Phase diagram in the parameter space (
Fig. 5. (a) Evolution of the intensity
Fig. 6. Propagation constant
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Zhen-Zhen Liu, Qiang Zhang, Yuntian Chen, Jun-Jun Xiao. General coupled-mode analysis of a geometrically symmetric waveguide array with nonuniform gain and loss[J]. Photonics Research, 2017, 5(2): 57
Category: Array Waveguide Devices
Received: Sep. 15, 2016
Accepted: Dec. 26, 2016
Published Online: Oct. 10, 2018
The Author Email: Jun-Jun Xiao (eiexiao@hitsz.edu.cn)