基于硅基光波导的光信号处理

发布时间：2018-01-17 01:20

  本文关键词：基于硅基光波导的光信号处理　出处：《华中科技大学》2016年博士论文　论文类型：学位论文

  更多相关文章： 硅基光子学 硅基光波导 硅基光子集成器件 光信号处理 片上光互连 线性光信号处理 非线性光信号处理

【摘要】：随着信息高速时代的到来,光通信网络快速发展,一方面光网络链路部分的信息传输容量不断得到提升,另一方面网络节点处的信息处理也呈现出高速大容量、可调谐、可重构及灵活多功能等趋势。同时,随着集成小型化进程的推进,光通信网络也广泛使用集成器件。硅基光子集成器件由于其低成本、尺寸小、容易集成、与金属氧化物半导体(CMOS)工艺兼容等特点,越来越备受关注。本文开展了基于硅基光波导的片上光互连以及基于硅基光波导线性和非线性效应的光信号处理研究,具体内容如下：(1)理论研究了硅基光波导的结构特性和非线性效应。①数值模拟了硅基光波导(条形波导和狭缝光波导)的色散和非线性与波长的变化趋势。②建立了基于硅基光波导非线性效应的全光信号处理的理论基础,理论研究了硅基光波导中自相位调制效应(SPM)、交叉相位调制效应(XPM)、双光子吸收效应(TPA)、自由载流子吸收(FCA)、简并四波混频效应(D-FWM)以及非简并四波混频效应(ND-FWM)等非线性效应的耦合波方程。(2)理论和实验研究了基于硅基光波导的片上光互连。①理论研究了基于硅基光波导(条形波导和狭缝材料为空气的垂直狭缝光波导)的片上光信号传输,理论分析了硅基光波导的非线性效应对高级调制格式信号片上光互连的传输影响；②将波分复用技术(WDM)、正交频分复用(OFDM)和正交幅度调制(16-QAM)信号结合实验研究了基于硅基垂直狭缝光波导的Tbit/s片上光互连传输。③实验研究了正交频分复用偏置正交幅度调制(OFDM7OQAM) 64/128/256/512-QAM信号基于硅基微环的片上光互连,实验分析了载波波长与硅基微环的谐振波长偏移量对片上光互连传输的影响。④实验研究了硅基光子晶体微腔的片上模拟信号传输链路,分析了硅基光子晶体微腔对模拟信号传输链路的影响。(3)实验研究了基于硅基光波导的线性光信号处理。①利用二维光子晶体光栅和微环谐振器的结构优势,结合OFDM/OQAM 64/128-QAM信号实验实现了硅基光子器件的片上偏振和波分复用解复用。②实验研究了基于硅基光波导的片上多个模式的复用和解复用。③设计制作了基于硅基光子集成器件的高级调制格式硅基微环调制器,在绝缘体上硅(SOI)平台上实验实现了仅基于硅基微环的强度调制的高阶调制格式信号的调制器。(4)理论和实验研究了基于硅基光波导的非线性光信号处理。①实验研究了基于硅基条形波导D-FWM效应的片上OFDM m-QAM信号的全光波长转换,实验实现了高达256-QAM信号的片上全光波长转换。②数值研究了仅用单个硅基狭缝光波导双四波混频效应同时实现了160-Gbit/s的半加器和半减器,此外,还通过分别引用两种非线性材料硅纳米晶(Si-nc)和有机高分子聚合物(PTS)作为狭缝材料对比,得出TPA系数低的硅基PTS狭缝光波导更适用于非线性光信号处理。③充分挖掘了基于硅基有机高分子聚合物狭缝光波导中的多个ND-FWM效应同时发生的工作原理,数值研究了基于硅基有机高分子聚合物狭缝光波导的三输入(A、B、C)十六进制40GBaud (160-Gbit/s)光加减计算(A+B-C、A+C-B、B+C-A、A+B+C、A-B-C、B-C-A)。④充分利用基于硅基有机高分子聚合物混合狭缝光波导的高非线性和低且平坦的色散特性,数值研究了基于硅基有机高分子聚合物混合狭缝光波导的ND-FWM的参量衰减效应实现640 GBaud (2.56-Tbit/s) 16-QAM及640 GBaud (3.84-Tbit/s) 64-QAM信号的光数据交换功能。⑤提出并数值研究了基于硅基有机高分子聚合物混合狭缝光波导XPM效应实现40 GBaud (160-bit/s) 16-QAM的光信号加密解密技术。⑥基于硅基有机高分子聚合物混合狭缝光波导XPM效应,提出并理论研究了一种可拓展的全光开关键控(OOK)信号到高级调制格式信号的码型转换器,数值仿真了多路OOK信号到四相移相键控(QPSK)信号、16/64/256-QAM信号的码型转换。⑦利用QPSK信号及D-FWM非线性相位操控作用,实验研究并实现了基于硅基条形波导的片上20Gbit/s两输入四进制光加减计算(2A-B、2B-A)。
[Abstract]:With the high speed of information era, the rapid development of optical communication network, on the one hand, the information transmission capacity of optical network link part continuously improve information processing, on the other hand, the network node is also showing a high speed and large capacity, tunable, reconfigurable and flexible multi function trend. At the same time, with the integration of the miniaturization process propulsion, integrated devices are widely used in optical communication networks. Silicon-based integrated photonic devices due to its low cost, small size, easy to be integrated, and the metal oxide semiconductor (CMOS) compatible features, more and more attention. This paper carried out on silicon waveguides on-chip optical interconnection and optical signal processing based on silicon optical waveguide based on linear and nonlinear effects, the specific contents are as follows: (1) theoretical study on structural characteristics and nonlinear effect of the silicon waveguide. The numerical simulation of the optical waveguide based on silicon waveguide and narrow ( The change trend of the joint optical waveguide) and wavelength dispersive and nonlinear. It has established a silicon-based optical waveguide nonlinear effect of optical signal processing theory based on the theory of self phase modulation in optical waveguide based on silicon (SPM), cross phase modulation (XPM), two-photon absorption (TPA). Free carrier absorption (FCA), degenerate four wave mixing (D-FWM) and non degenerate four wave mixing (ND-FWM) coupled wave equation of nonlinear effect. (2) theoretical and Experimental Research on on-chip optical interconnection based on silicon based optical waveguide. The theory of optical waveguide based on silicon (based on the bar the waveguide and the slit material for vertical slit waveguide air) chip signal transmission, transmission theory to analyze the nonlinear effect of optical waveguide based on silicon on advanced modulation format signals on-chip optical interconnect effect; the wavelength division multiplexing (WDM), OF (orthogonal frequency division multiplexing DM) and quadrature amplitude modulation (16-QAM) based on Tbit/s chip interconnect silicon vertical slit optical waveguide based on experiments. The experimental research on signal of orthogonal frequency division multiplexing offset quadrature amplitude modulation (OFDM7OQAM) signal 64/128/256/512-QAM based on silicon based micro ring on-chip optical interconnection, the experimental analysis of the influence of resonant wavelength offset carrier and the wavelength of silicon based micro ring for on-chip optical interconnect transmission. The experimental study on silicon photonic crystal microcavity on chip analog signal transmission link, analyzes the influence of silicon photonic crystal micro cavity on the analog signal transmission link. (3) experimental study on linear optical signal processing based on optical waveguide based on silicon the advantage of the structure. The two-dimensional photonic crystal grating and micro ring resonator, combined with OFDM/OQAM 64/128-QAM signal experimental realization of silicon photonic devices on the polarization and wavelength division multiplexing experiments. Study on the multiplexing and de multiplexing optical waveguide based on silicon chip based on multiple mode. The design of silicon-based integrated photonic devices based on advanced modulation formats of silicon based micro ring modulator in silicon on insulator (SOI) on the platform of the experimental realization of high order modulator modulation format signals only based on silicon based micro ring strength modulation. (4) the theoretical and experimental study on the nonlinear optical signal processing based on silicon based optical waveguide. The experimental study of all-optical wavelength OFDM m-QAM signal based on silicon waveguide D-FWM effect on the conversion based on the experiments achieved up to 256-QAM signal chip all-optical wavelength conversion. The numerical study at the same time to achieve the 160-Gbit/s half adder and half subtracter, using only a single silicon slit waveguide double four wave mixing effect in addition, also by two kinds of nonlinear material reference silicon nanocrystals (Si-nc) and organic macromolecule polymers (PTS) As the slit material comparison, the TPA coefficient is low silicon PTS slit waveguide for nonlinear optical signal processing. The working principle and fully tap the occurrence of multiple ND-FWM effect of silicon based organic polymer optical waveguide based on slit, numerical study of three input silicon organic polymer optical waveguide based on slit (A, B, C) sixteen m 40GBaud (160-Gbit/s) optical calculation (A+B-C, A+C-B, B+C-A, A+B+C, A-B-C, B-C-A). The full use of the high nonlinear silicon based organic polymer hybrid slot optical waveguides and low and flat dispersion characteristics based on Numerical Study on parameters of silicon based organic polymer hybrid slit waveguide ND-FWM attenuation effect for 640 GBaud based on 16-QAM (2.56-Tbit/s) and 640 GBaud (3.84-Tbit/s) optical data exchange function of 64-QAM signal. The proposed and numerical research base In silicon based organic polymer hybrid slit waveguide XPM effect of 40 GBaud (160-bit/s) 16-QAM encryption and decryption technology of optical signal. The silicon based organic polymer hybrid slot optical waveguides based on XPM theory is proposed and studied a scalable all-optical on-off keying (OOK) signal to the advanced modulation format converter signal format, numerical simulation of multi-channel OOK signals to the four phase shift keying (QPSK) signal code, 16/64/256-QAM signal conversion. The use of QPSK signal and D-FWM nonlinear phase control, experimental study and realize the calculation of silicon waveguide chip 20Gbit/s two input four hexadecimal subtraction based on (2A-B, 2B-A light).

【学位授予单位】：华中科技大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：TN929.1;TN911.74
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本文编号：1435684