Inverse design and demonstration of a compact and broadband on-chip wavelength demultiplexer

Alexander Y. Piggott, Jesse Lu, Konstantinos G. Lagoudakis, Jan Petykiewicz, Thomas M. Babinec, Jelena Vučković

Research output: Contribution to journalArticle

249 Citations (Scopus)

Abstract

Integrated photonic devices are poised to play a key role in a wide variety of applications, ranging from optical interconnects and sensors to quantum computing. However, only a small library of semi-analytically designed devices is currently known. Here, we demonstrate the use of an inverse design method that explores the full design space of fabricable devices and allows us to design devices with previously unattainable functionality, higher performance and robustness, and smaller footprints than conventional devices. We have designed a silicon wavelength demultiplexer that splits 1,300 nm and 1,550 nm light from an input waveguide into two output waveguides, and fabricated and characterized several devices. The devices display low insertion loss (∼2 dB), low crosstalk (textless−11 dB) and wide bandwidths (textgreater100 nm). The device footprint is 2.8 × 2.8 μm2, making this the smallest dielectric wavelength splitter.
LanguageEnglish
Pages374-377
Number of pages4
JournalNature Photonics
Volume9
Issue number6
DOIs
Publication statusPublished - 11 May 2015

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Demonstrations
chips
broadband
Wavelength
Waveguides
wavelengths
Photonic devices
Optical interconnects
Optical sensors
Silicon
Crosstalk
Insertion losses
footprints
Display devices
Bandwidth
waveguides
optical interconnects
optical measuring instruments
display devices
quantum computation

Cite this

Piggott, Alexander Y. ; Lu, Jesse ; Lagoudakis, Konstantinos G. ; Petykiewicz, Jan ; Babinec, Thomas M. ; Vučković, Jelena. / Inverse design and demonstration of a compact and broadband on-chip wavelength demultiplexer. In: Nature Photonics. 2015 ; Vol. 9, No. 6. pp. 374-377.
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Inverse design and demonstration of a compact and broadband on-chip wavelength demultiplexer. / Piggott, Alexander Y.; Lu, Jesse; Lagoudakis, Konstantinos G.; Petykiewicz, Jan; Babinec, Thomas M.; Vučković, Jelena.

In: Nature Photonics, Vol. 9, No. 6, 11.05.2015, p. 374-377.

Research output: Contribution to journalArticle

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