{"title":"Polymeric Integrated Optical Circuits","authors":"Wei Su, S. Weinstein, H. C. Cooper, J. K. Beuchel","doi":"10.1364/otfa.1993.wd.12","DOIUrl":null,"url":null,"abstract":"Polymeric integrated multimode waveguides (100 µm × 125 µm × 3 in.) have been developed on conventional FR-4 epoxy printed circuit boards (PCBs) using UV curable polymers and negative photolithographic technology. Through molecular engineering, solventless UV curable guiding and cladding materials with appropriate optical and mechanical properties have been synthesized for waveguide applications in the visible and near-infrared wavelength regions. The solventless feature of these materials made them possible to fabricate thick waveguides in single process. Novel planarization technique have been developed to overcome the problems of surface waviness of the PCBs. Multimode (>75 microns) waveguides have been fabricated to distribute control signals to multiple transmit/receive (T/R) modules on large-array radar antennas. To date, waveguide structures with straight, curved, Y-split and tap geometries have been designed and fabricated successfully on PCBs; good light intensity outputs from Y-split and multiple-tap buses were obtained. This paper will discuss the materials and optical circuit fabrication of the waveguide structures and the results of laboratory tests using the optical buses for control signal distribution to T/R modules.","PeriodicalId":246676,"journal":{"name":"Organic Thin Films for Photonic Applications","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Organic Thin Films for Photonic Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1364/otfa.1993.wd.12","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Polymeric integrated multimode waveguides (100 µm × 125 µm × 3 in.) have been developed on conventional FR-4 epoxy printed circuit boards (PCBs) using UV curable polymers and negative photolithographic technology. Through molecular engineering, solventless UV curable guiding and cladding materials with appropriate optical and mechanical properties have been synthesized for waveguide applications in the visible and near-infrared wavelength regions. The solventless feature of these materials made them possible to fabricate thick waveguides in single process. Novel planarization technique have been developed to overcome the problems of surface waviness of the PCBs. Multimode (>75 microns) waveguides have been fabricated to distribute control signals to multiple transmit/receive (T/R) modules on large-array radar antennas. To date, waveguide structures with straight, curved, Y-split and tap geometries have been designed and fabricated successfully on PCBs; good light intensity outputs from Y-split and multiple-tap buses were obtained. This paper will discuss the materials and optical circuit fabrication of the waveguide structures and the results of laboratory tests using the optical buses for control signal distribution to T/R modules.
聚合物集成多模波导(100 μ m × 125 μ m × 3英寸)已经在传统的FR-4环氧印刷电路板(pcb)上使用UV固化聚合物和负光刻技术开发出来。通过分子工程技术,合成了具有合适光学性能和力学性能的无溶剂紫外固化波导和包层材料。这些材料的无溶剂特性使得单次加工制造厚波导成为可能。为了克服pcb表面的波浪形问题,提出了一种新的平面化技术。多模(>75微米)波导已被制造用于将控制信号分配到大阵列雷达天线上的多个发射/接收(T/R)模块。迄今为止,具有直、弯、y型和抽头几何形状的波导结构已在pcb上成功设计和制造;从y分流和多抽头总线获得了良好的光强输出。本文将讨论波导结构的材料和光学电路的制作,以及使用光总线控制信号分配到T/R模块的实验室测试结果。