A High-Efficiency 50 GHz InGaAs Multimode Waveguide Photodetector

Kazutoshi Kato; Susumu Hata; Kenji Kawano; Junichi Yoshida; Atsuo Kozen

doi:10.1109/3.166466

A High-Efficiency 50 GHz InGaAs Multimode Waveguide Photodetector

Kazutoshi Kato, Susumu Hata, Kenji Kawano, Junichi Yoshida, Atsuo Kozen

Research output: Contribution to journal › Article › peer-review

125 Citations (Scopus)

Abstract

We propose a new type of side-illuminated pin photodetector with a multimode waveguide structure. Numerical and experimental results show that higher-order mode lights greatly enhance the coupling efficiency between the waveguide photodetector (WGPD) and a fiber, which leads to a high external quantum efficiency. Furthermore, the multimode WGPD has the major advantage that the external quantum efficiency and bandwidth can be derived independently of each other because the multimode waveguide structure can be designed without deteriorating electrical properties. The fabricated WGPD has an external quantum efficiency of 56% without AR coating and 68% with AR coating and an electrical 3 dB frequency greater than 50 GHz at a 1.55 μm wavelength.

Original language	English
Pages (from-to)	2728-2735
Number of pages	8
Journal	IEEE Journal of Quantum Electronics
Volume	28
Issue number	12
DOIs	https://doi.org/10.1109/3.166466
Publication status	Published - Dec 1992
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/3.166466

Cite this

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abstract = "We propose a new type of side-illuminated pin photodetector with a multimode waveguide structure. Numerical and experimental results show that higher-order mode lights greatly enhance the coupling efficiency between the waveguide photodetector (WGPD) and a fiber, which leads to a high external quantum efficiency. Furthermore, the multimode WGPD has the major advantage that the external quantum efficiency and bandwidth can be derived independently of each other because the multimode waveguide structure can be designed without deteriorating electrical properties. The fabricated WGPD has an external quantum efficiency of 56% without AR coating and 68% with AR coating and an electrical 3 dB frequency greater than 50 GHz at a 1.55 μm wavelength.",

author = "Kazutoshi Kato and Susumu Hata and Kenji Kawano and Junichi Yoshida and Atsuo Kozen",

year = "1992",

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T1 - A High-Efficiency 50 GHz InGaAs Multimode Waveguide Photodetector

AU - Kato, Kazutoshi

AU - Hata, Susumu

AU - Kawano, Kenji

AU - Yoshida, Junichi

AU - Kozen, Atsuo

PY - 1992/12

Y1 - 1992/12

N2 - We propose a new type of side-illuminated pin photodetector with a multimode waveguide structure. Numerical and experimental results show that higher-order mode lights greatly enhance the coupling efficiency between the waveguide photodetector (WGPD) and a fiber, which leads to a high external quantum efficiency. Furthermore, the multimode WGPD has the major advantage that the external quantum efficiency and bandwidth can be derived independently of each other because the multimode waveguide structure can be designed without deteriorating electrical properties. The fabricated WGPD has an external quantum efficiency of 56% without AR coating and 68% with AR coating and an electrical 3 dB frequency greater than 50 GHz at a 1.55 μm wavelength.

AB - We propose a new type of side-illuminated pin photodetector with a multimode waveguide structure. Numerical and experimental results show that higher-order mode lights greatly enhance the coupling efficiency between the waveguide photodetector (WGPD) and a fiber, which leads to a high external quantum efficiency. Furthermore, the multimode WGPD has the major advantage that the external quantum efficiency and bandwidth can be derived independently of each other because the multimode waveguide structure can be designed without deteriorating electrical properties. The fabricated WGPD has an external quantum efficiency of 56% without AR coating and 68% with AR coating and an electrical 3 dB frequency greater than 50 GHz at a 1.55 μm wavelength.

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A High-Efficiency 50 GHz InGaAs Multimode Waveguide Photodetector

Abstract

All Science Journal Classification (ASJC) codes

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