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Applied Physics Letters / Volume 96 / Issue 10 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 96, 101103 (2010); http://dx.doi.org/10.1063/1.3357427 (3 pages)

All-silicon sub-Gb/s telecom detector with low dark current and high quantum efficiency on chip

Takasumi Tanabe1,2, Hisashi Sumikura1, Hideaki Taniyama1,2, Akihiko Shinya1,2, and Masaya Notomi1,2

1NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan
2CREST-JST, 4-1-8 Honmachi, Kawaguchi, Saitama 332-0012, Japan

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(Received 6 February 2010; accepted 17 February 2010; published online 8 March 2010)

We demonstrate channel selective 0.1-Gb/s photoreceiver operation at telecom wavelength using a silicon high-Q photonic crystal nanocavity with a laterally integrated p-i-n diode. Due to the good crystal property of silicon the measured dark current is only 15 pA. The linear and nonlinear characteristics are investigated in detail, in which we found that the photocurrent is enhanced of more than 105 due to the ultrahigh-Q (Q ≃ 105). With the help of two-photon absorption, which is visible at a surprisingly low input power of 10−8 W, the quantum efficiency of this device reaches ∼ 10%.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

dark conductivity, elemental semiconductors, integrated optoelectronics, optical receivers, photoconductivity, photodetectors, photoemission, photonic crystals, p-i-n photodiodes, silicon, telecommunication channels

PACS

  • 42.79.Sz

    Optical communication systems, multiplexers, and demultiplexers

  • 85.60.Gz

    Photodetectors (including infrared and CCD detectors)

  • 85.60.Dw

    Photodiodes; phototransistors; photoresistors

  • 84.40.Ua

    Telecommunications: signal transmission and processing; communication satellites

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3357427

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    J. B. Abad, E. Ippen, and M. Soljačić, Appl. Phys. Lett. 94, 241103 (2009)APPLAB000094000024241103000001.

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    T. Tanabe, K. Nishiguchi, A. Shinya, E. Kuramochi, H. Inokawa, M. Notomi, K. Yamada, T. Tsuchizawa, T. Watanabe, H. Fukuda, H. Shinojima, and S. Itabashi, Appl. Phys. Lett. 90, 031115 (2007)APPLAB000090000003031115000001.

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