High-performance flexible waveguide-integrated photodetectors

TitleHigh-performance flexible waveguide-integrated photodetectors
Publication TypeJournal Article
Year of Publication2018
AuthorsLi, L, Lin, H, Huang, Y, Shiue, R-J, Yadav, A, Li, J, Michon, J, Englund, D, Richardson, K, Gu, T, Hu, J
JournalOptica
Volume5
Issue1
Pagination44 - 51
Date Published2018/01/20/
ISBN Number2334-2536
Keywordsarrays, fabrication, heterojunction photodiodes, nanowires, optical interconnects, photonic devices, platform, sensors, thin, visible-light photodetectors
Abstract

Mechanically flexible photonic devices are essential building blocks for novel bio-integrated optoelectronic systems, wearable sensors, and flexible consumer electronics. Here we describe the design and experimental demonstration of high-performance flexible semiconductor nanomembrane photodetectors integrated with single-mode chalcogenide glass waveguides. Through a combination of a waveguide-integrated architecture to enhance light-matter interactions and mechanical engineering of multilayer configurations to suppress strains, the detector devices exhibit record optical and mechanical performance. The devices feature a noise equivalent power as low as 0.02 pW.Hz(1/2), a linear dynamic range exceeding 70 dB, and a 3-dB bandwidth of 1.4 GHz, all measured at 1530 nm wavelength. The devices withstand 1000 bending cycles at a submillimeter radius without degradation in their optoelectronic responses. These metrics represent significant improvements over state-of-the-art flexible photodetectors. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Short TitleOptica