High-speed, compact silicon and hybrid plasmonic waveguides for signal processing

doi:10.1007/s12200-011-0218-x

Front Optoelec Chin

0, Vol.

Issue () : 264-269 https://doi.org/10.1007/s12200-011-0218-x

RESEARCH ARTICLE

High-speed, compact silicon and hybrid plasmonic waveguides for signal processing

Yikai SU(

), Gan ZHOU, Fei LI, Tao WANG

State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

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Abstract

All-optical circuits for signal processing could be a promising solution to overcome the speed bottleneck of electronics. For the photonics industry, silicon becomes a competitive material of choice in the field of integrated optics for designing and implementing high-speed and compact photonic devices. To further increase the integration density, it is a critical challenge to manipulate light on scales much smaller than the wavelength for the dielectric waveguides due to the diffraction limitation. Surface plasmon-polaritons (SPPs), which break the diffraction limitation, are receiving increasing attentions in recent years. This paper compares the advantages and disadvantages between electronic devices and optical devices taking differentiator as an example, and proposes an optical parametric amplifier (OPA) using silicon-based hybrid plasmonic waveguide.

Keywords silicon based surface plasmons microring resonator differentiator optical parametric amplifier (OPA)

Corresponding Author(s): SU Yikai,Email:yikaisu@sjtu.edu.cn

Issue Date: 05 September 2011

Cite this article:

Yikai SU,Gan ZHOU,Fei LI, et al. High-speed, compact silicon and hybrid plasmonic waveguides for signal processing[J]. Front Optoelec Chin, 0, (): 264-269.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-011-0218-x
https://academic.hep.com.cn/foe/EN/Y0/V/I/264

Fig.1 Two schemes to realize optical and electronic differentiators. (a) Optical differentiator using a single silicon ring resonator; (b) realization of electronic differentiator using digital signal processing

Tab.1 Comparison of electronic devices and optical devices

Fig.2 80-Gb/s optical differentiator. (a,b) SEM pictures of fabrication silicon microring resonator with radius of 20 μm; (c) measured transmission spectrum of ring resonator; (d) vertical coupling setup for fiber to silicon waveguide light coupling; (e) experimental setup for 80-Gb/s signal differentiator. Inset (i) inputted 10-GHz optical ps-signal; inset (ii) generated 80-GHz OTDM signal before differentiation; inset (iii) red solid curve: the measured differential results of the 80-GHz OTDM signal; blue dotted curve: simulated curve after an ideal differentiator of 80-GHz OTDM signal

Fig.3 Integrated analog all-optical computing scheme for real-time solving of first-order linear ODE using silicon ring resonator based ultra-fast optical differentiator

Fig.4 (a) Schematic of SHP waveguide; (b) || profiles of SHO waveguide in - plane, with = 200 nm, = 300 nm, = 5 nm, = 50 nm, = 100 nm, = 200 nm; (c) calculated GVD denoted by versus wavelength; (d) simulated curves of signal net power gain for SHP waveguide with 1-W peak pump power at 1550 nm and waveguide length of 50 μm; (e) simulated curves of signal net power gain for pump power varying from 0.1 to 1 W, with waveguide width of 200 nm and length of 50 μm; (f) simulated curves of signal net power gain for waveguide length varying from 20 to 300 μm, with pump power of 1 W and waveguide width of 200 nm

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