Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths
View/ Open
Date
04/2013Author
Grant ID
EP/F001622/1
EP/H00680X/1
Keywords
Metadata
Show full item recordAbstract
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.
Citation
Debnath , K , Gardes , F Y , Knights , A P , Reed , G T , Krauss , T F & O'Faolain , L 2013 , ' Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths ' , Applied Physics Letters , vol. 102 , no. 17 , 171106 . https://doi.org/10.1063/1.4803541
Publication
Applied Physics Letters
Status
Peer reviewed
ISSN
0003-6951Type
Journal article
Collections
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.