Design and Crosstalk Analysis in Homogeneous Trench-Assisted Multicore Fiber under Single-Mode Condition

Author(s):  
Dablu Kumar ◽  
Rakesh Ranjan
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Josu Amorebieta ◽  
Angel Ortega-Gomez ◽  
Gaizka Durana ◽  
Rubén Fernández ◽  
Enrique Antonio-Lopez ◽  
...  

AbstractWe propose and demonstrate a compact and simple vector bending sensor capable of distinguishing any direction and amplitude with high accuracy. The sensor consists of a short segment of asymmetric multicore fiber (MCF) fusion spliced to a standard single mode fiber. The reflection spectrum of such a structure shifts and shrinks in specific manners depending on the direction in which the MCF is bent. By monitoring simultaneously wavelength shift and light power variations, the amplitude and bend direction of the MCF can be unmistakably measured in any orientation, from 0° to 360°. The bending sensor proposed here is highly sensitive even for small bending angles (below 1°).


2016 ◽  
Vol 30 (22) ◽  
pp. 1650268
Author(s):  
Jianfeng Yang ◽  
Jingjing Yang ◽  
Ming Huang

A cylindrical graphene plasmon waveguide (CGPW) which consists of two rolled graphene ribbons, a dielectric core and a dielectric interlayer is proposed. An analytical model for the single-mode condition and cutoff frequency of high-order graphene surface plasmon (GSP) modes is presented and verified by finite element method (FEM) simulations. Single-mode operation region of CGPW is identified in the frequency–radius space. By varying the separation between two graphene sheets and the Fermi level of graphene, a large tunability of the mode behavior is also demonstrated. The proposed structure may provide a new freedom to manipulate GSPs, and would lead to novel applications in optics.


2011 ◽  
Vol 31 (8) ◽  
pp. 0813001
Author(s):  
高原 Gao Yuan ◽  
张晓霞 Zhang Xiaoxia ◽  
廖进昆 Liao Jinkun

2019 ◽  
Vol 37 (2) ◽  
pp. 396-403 ◽  
Author(s):  
Tomohiro Gonda ◽  
Katsunori Imamura ◽  
Masayoshi Tsukamoto ◽  
Kohei Kawasaki ◽  
Shinichi Arai ◽  
...  
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