Segmented waveguide photodetector with 90% quantum efficiency

We demonstrate a novel InGaAsP/InP segmented waveguide photodetector based on directional couplers. By matching the imaginary parts of the propagation constants of the even and odd modes, we designed a photodetector with 6 elements, each with an absorber volume of only 19 μm and a bandwidth of 15 GH...

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Bibliographic Details
Published inOptics express Vol. 26; no. 10; pp. 12499 - 12505
Main Authors Yu, Qianhuan, Sun, Keye, Li, Qinglong, Beling, Andreas
Format Journal Article
LanguageEnglish
Published United States 14.05.2018
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Summary:We demonstrate a novel InGaAsP/InP segmented waveguide photodetector based on directional couplers. By matching the imaginary parts of the propagation constants of the even and odd modes, we designed a photodetector with 6 elements, each with an absorber volume of only 19 μm and a bandwidth of 15 GHz, that has an internal quantum efficiency (QE) of 90% at 1550 nm wavelength corresponding to 1.13 A/W.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.012499