Improved light coupling efficiency of organic light-emitting diode and polymer optical waveguide inte-grated device by grating coupler

• 作者: WEI Song LIU Chang QIN Houyun LIU Yiming CHEN Changming WANG Hongbo ZHAO Yi
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2021,（10）
• 所属期刊栏目: Devices
• 页码范围: 598-603
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11801-021-1011-8

摘要

In this work,the light coupling efficiency of organic light-emitting diode(OLED)and polymer optical waveguide in-tegrated device was improved by the grating coupler.To maximize light coupling efficiency,the grating coupler was optimized by finite-difference time-domain(FDTD)method.Based on the simulation results,the grating coupler was fabricated via laser interference lithography process and an OLED was integrated on the surface of it.Comparing the integrated devices without and with grating coupler,light coupling efficiency of the grating-based integrated device was improved by about 5％.The proposed integrated device has the potential application for low-cost and flexible monolithic optical sensors.