Study of the coupling characteristics of the nanometer aluminium-cladding optical waveguide

CHEN Qing-mei; FENG Guo-ying; SUN Nian-chun; ZHOU Guo-rui; ZHANG Yi; WANG Jian-jun; MA Zi

doi:10.3969/j.issn.1001-3806.2012.02.009

In order to study the influence of parameters in 10nm-class aluminium-cladding optical waveguide,the attenuation total reflection spectrum was simulated theoretically with different thickness and refractive index of the cover and film,and the effect of characteristic parameters on the coupling was analyzed.Finally the experiments verified the influence of the thickness and refractive index of the metal layer on the coupling.At the same time,it was found that the refractive index of the nanometer-class aluminium film changed a lot.It is concluded that the number of the guided modes are affected by the thickness of the film,which is unrelated with the coupling depth;the refractive index of the film affects the number of the guided modes and the coupling depth;the number of the guided modes was unrelated with the thickness of the cover,which affects the coupling depth;for the same thickness of the cover,the coupling condition varies with the refractive index of the cover.The research opens the doors for the manufacture and the design of the pulse stretchers based on symmetrical metal-cladding optical waveguide.

Study of the coupling characteristics of the nanometer aluminium-cladding optical waveguide

Corresponding author: FENG Guo-ying, guoing_feng@scu.edu.cn;

1. College of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China;

2. Institute of Applied Electronics, China Academy of Engineering Physics, Mianyang 621900, China;

3. Southwest Institute of Technical Physics, Chengdu 610041, China

Received Date: 2011-07-20

Accepted Date: 2011-08-10

Available Online: 2012-03-25

Abstract: In order to study the influence of parameters in 10nm-class aluminium-cladding optical waveguide,the attenuation total reflection spectrum was simulated theoretically with different thickness and refractive index of the cover and film,and the effect of characteristic parameters on the coupling was analyzed.Finally the experiments verified the influence of the thickness and refractive index of the metal layer on the coupling.At the same time,it was found that the refractive index of the nanometer-class aluminium film changed a lot.It is concluded that the number of the guided modes are affected by the thickness of the film,which is unrelated with the coupling depth;the refractive index of the film affects the number of the guided modes and the coupling depth;the number of the guided modes was unrelated with the thickness of the cover,which affects the coupling depth;for the same thickness of the cover,the coupling condition varies with the refractive index of the cover.The research opens the doors for the manufacture and the design of the pulse stretchers based on symmetrical metal-cladding optical waveguide.

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Reference (13)

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Study of the coupling characteristics of the nanometer aluminium-cladding optical waveguide

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