Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths

Kapil Debnath; Frederic Y. Gardes; Andrew P. Knights; Graham T. Reed; Thomas F. Krauss; Liam O'Faolain

doi:10.1063/1.4803541

Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths

Kapil Debnath^*, Frederic Y. Gardes, Andrew P. Knights, Graham T. Reed, Thomas F. Krauss, Liam O'Faolain

^*Corresponding author for this work

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

Abstract

We present a method for detecting light in the 1550 nm wavelength window based on a silicon nitride waveguide that is vertically coupled to a silicon photonic crystal cavity. The absorption in silicon arises from deep-levels created by ion implantation, thereby providing excellent CMOS compatibility. We demonstrate a responsivity of 0.108 A/W at -10 V reverse bias with a dark current of 9.4 nA. Our work demonstrates one of the smallest wavelength selective photodectors realised to date. By cascading such detectors we also demonstrate a two-channel demultiplexer.

Original language	English
Article number	171106
Number of pages	4
Journal	Applied Physics Letters
Volume	102
Issue number	17
DOIs	https://doi.org/10.1063/1.4803541
Publication status	Published - Apr 2013

Keywords

Photoelectric conversion
Photonic crystal waveguides
Optical waveguides
Optical resonators
Silcon
Photonic crystals

Access to Document

10.1063/1.4803541

1.4803541
Copyright 2013, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 102 (17) and may be found at: http://scitation.aip.org/content/aip/journal/apl/102/17/10.1063/1.4803541
Final published version, 1.44 MB

Cite this

@article{0838cbfd454542df809fde1f1330ee52,

title = "Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths",

abstract = "We present a method for detecting light in the 1550 nm wavelength window based on a silicon nitride waveguide that is vertically coupled to a silicon photonic crystal cavity. The absorption in silicon arises from deep-levels created by ion implantation, thereby providing excellent CMOS compatibility. We demonstrate a responsivity of 0.108 A/W at -10 V reverse bias with a dark current of 9.4 nA. Our work demonstrates one of the smallest wavelength selective photodectors realised to date. By cascading such detectors we also demonstrate a two-channel demultiplexer.",

keywords = "Photoelectric conversion, Photonic crystal waveguides, Optical waveguides, Optical resonators, Silcon, Photonic crystals",

author = "Kapil Debnath and Gardes, \{Frederic Y.\} and Knights, \{Andrew P.\} and Reed, \{Graham T.\} and Krauss, \{Thomas F.\} and Liam O'Faolain",

year = "2013",

month = apr,

doi = "10.1063/1.4803541",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "17",

}

TY - JOUR

T1 - Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths

AU - Debnath, Kapil

AU - Gardes, Frederic Y.

AU - Knights, Andrew P.

AU - Reed, Graham T.

AU - Krauss, Thomas F.

AU - O'Faolain, Liam

PY - 2013/4

Y1 - 2013/4

N2 - We present a method for detecting light in the 1550 nm wavelength window based on a silicon nitride waveguide that is vertically coupled to a silicon photonic crystal cavity. The absorption in silicon arises from deep-levels created by ion implantation, thereby providing excellent CMOS compatibility. We demonstrate a responsivity of 0.108 A/W at -10 V reverse bias with a dark current of 9.4 nA. Our work demonstrates one of the smallest wavelength selective photodectors realised to date. By cascading such detectors we also demonstrate a two-channel demultiplexer.

AB - We present a method for detecting light in the 1550 nm wavelength window based on a silicon nitride waveguide that is vertically coupled to a silicon photonic crystal cavity. The absorption in silicon arises from deep-levels created by ion implantation, thereby providing excellent CMOS compatibility. We demonstrate a responsivity of 0.108 A/W at -10 V reverse bias with a dark current of 9.4 nA. Our work demonstrates one of the smallest wavelength selective photodectors realised to date. By cascading such detectors we also demonstrate a two-channel demultiplexer.

KW - Photoelectric conversion

KW - Photonic crystal waveguides

KW - Optical waveguides

KW - Optical resonators

KW - Silcon

KW - Photonic crystals

UR - https://www.scopus.com/pages/publications/84877285539

U2 - 10.1063/1.4803541

DO - 10.1063/1.4803541

M3 - Article

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 17

M1 - 171106

ER -

Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Lasing of Erbium in Crystalline silicon: Lasing of Erbium in crystalline silicon Photonic Nanostructures - LECSIN

UK Silicon Photonics EP/F001622/1: UK Silicon Photonics

Cite this

Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Lasing of Erbium in Crystalline silicon: Lasing of Erbium in crystalline silicon Photonic Nanostructures - LECSIN

UK Silicon Photonics EP/F001622/1: UK Silicon Photonics

Cite this