基于AWG的2bit光延时集成器件的研究与制备

发布时间：2018-01-31 01:20

本文关键词： 聚合物波导阵列波导光栅光学真延时　出处：《东南大学》2015年硕士论文　论文类型：学位论文

【摘要】：使用集成光学制备工艺的光波导延迟线的延时精度能够达到亚皮秒量级,能够满足雷达对工作频率越来越高的要求。而相对于无机材料而言,近年来有机聚合物光集成器件因其特有的优势,越来越成为热门的研究课题。聚合物材料在制作光波导时,具有成膜性好,剪裁性和加工性强,以及与衬底的兼容性高的优点。同时,在光的损耗,折射率的控制,热稳定性等性能方面的实验和进展表明,聚合物将成为低成本,高性能的光集成器件的基础材料。本论文首先对平板光波导理论以及阵列波导光栅的工作原理进行了详细的研究。并以光波导理论和光的耦合模理论为基础,根据AWG的工作原理和各参数特性。设计出了工作于通信波长的1×8阵列波导光栅,并用Rsoft软件进行了模拟和参数的优化。然后根据制作所需的流程,对制备工艺进行了详细的探究和分析,得出了完整的工艺流程和参数。选用了ZPU13系列的有机聚合物作为波导的芯层和包层材料。制备出了波长间隔1.6nm的1×8阵列波导光栅并进行了测试。测试结果表明器件成功实现了对中心波长为1550nm的输入光的波分复用功能,平均波长间隔为1.6nm,插入损耗小于-20dB,3dB带宽1nm,符合设计的预期效果。接着通过进一步优化AWG的设计,单片集成AWG及延时线阵列,制备出了具有光学真延时效应的2bitAWG基光学真延时线,波长间隔为1.6nm。输出的四种波长分别具有0ps,40ps,80ps,120ps的延时量。证明了设计方案的可行性,为下一步集成光学真延时系统研究奠定了基础。
[Abstract]:The delay precision of the optical waveguide delay line using integrated optical fabrication process can reach sub-picosecond order, which can meet the increasing requirements of radar operating frequency, but compared with inorganic materials. In recent years, organic polymer optical integrated devices have become more and more popular research topics because of their unique advantages. Polymer materials have good film formation, good tailoring and good processability when making optical waveguides. At the same time, experiments and advances in optical loss, refractive index control, thermal stability and other properties show that the polymer will become low cost. The basic materials of high performance optical integrated devices. Firstly, the theory of planar optical waveguide and the working principle of arrayed waveguide grating are studied in detail, and based on the theory of optical waveguide and the coupled mode theory of light. A 1 脳 8 arrayed waveguide grating working at the communication wavelength is designed according to the principle of AWG and the characteristics of each parameter. Rsoft software was used to simulate and optimize the parameters. Then according to the process of production, the preparation process was studied and analyzed in detail. The complete technological process and parameters were obtained. The ZPU13 series of organic polymers were selected as the core and cladding materials of the waveguide. 1 脳 8 arrayed waveguide gratings with a wavelength interval of 1.6 nm were prepared and carried out. The test results show that the device has successfully realized the wavelength division multiplexing function of the input light with a central wavelength of 1550nm. The average wavelength interval is 1.6 nm, and the insertion loss is less than -20 dB Bu 3dB bandwidth 1 nm, which is in line with the expected effect of the design. Then, the design of AWG is further optimized. Two bit AWG based optical true delay lines with optical true delay effect have been fabricated by integrating AWG and delay line array. The wavelength interval is 1.6 nm. The four wavelengths of the output have 0 PS respectively. It proves the feasibility of the design scheme and lays a foundation for the further research of integrated optical real delay system.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN25

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