Exploiting bifurcations in waveguide arrays for light detectors

被引：2
|
作者：
Karjanto, N. [1 ]
Susanto, H. [2 ]
机构：
[1] Sungkyunkwan Univ, Univ Coll, Dept Math, Seoul, South Korea
[2] Univ Nottingham, Sch Math Sci, Nottingham NG7 2RD, England
来源：
PHYSICAL REVIEW A | 2012年 / 85卷 / 04期
关键词：
DISCRETE; SUPRATRANSMISSION; SOLITONS;
D O I：
10.1103/PhysRevA.85.045803
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An array of a finite number of waveguides, driven laterally by injecting light at the outer waveguides, is considered. The array is modeled by a discrete nonlinear Schrodinger equation. It has been shown [Phys. Rev. Lett. 94, 243902 (2005)] that, when the injected light is in the proximity of a bifurcation point, such a system can be sensitive to small disturbances, making it possible to act as a light detector. Here, the optimum intensity of the injected light is discussed, and an analytical approximation is presented.
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页数：3
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