High-Performance Flexible Waveguide-Integrated 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 · Hz1/2, 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.

Publication Date

1-20-2018

Publication Title

Optica

Volume

5

Issue

1

Number of Pages

44-51

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OPTICA.5.000044

Socpus ID

85040923102 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85040923102

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