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A plasmonic splitter with flexible power splitting ratio at optical fiber communication waveband

Published online by Cambridge University Press:  10 October 2014

Ting Zhong ,
Peilin Lang ,
Xi Chen ,
Gaoyan Duan ,
Li Yu  and
Jinghua Xiao
Ting Zhong
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
Peilin Lang*
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
Xi Chen
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
Gaoyan Duan
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
Li Yu
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
Jinghua Xiao
Affiliation:
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, P.R. China
*
ae-mail: [email protected]
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Abstract

We present a plasmonic splitter based on metal-insulator-metal (MIM) structure. This splitter consists of two parallel waveguides and two resonators. One resonator is a ring tangentially connected with the two waveguides, and the other resonator is a semi-ring directly connected to the lower waveguide. The finite-difference time-domain (FDTD) method is used to numerically analyze the transmittance spectra of the splitter. The results show that this splitter is a beam splitter when the wavelength of the incident wave is around 1355 nm or 1553 nm. This splitter can also be regarded as a power splitter. To our knowledge, this is the first designed surface plasmon polaritons (SPPs) splitter which utilize both the communication wavelengths at around 1310 nm and 1550 nm. This characteristics show potential applications in future optical circuits.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 68 , Issue 1 , October 2014 , 10501
Copyright
© EDP Sciences, 2014

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