Inverse design and implementation of a wavelength demultiplexing grating coupler

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

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Nanophotonics has emerged as a powerful tool for manipulating light on chips. Almost all of today's devices, however, have been designed using slow and ineffective brute-force search methods, leading in many cases to limited device performance. In this article, we provide a complete demonstration of our recently proposed inverse design technique, wherein the user specifies design constraints in the form of target fields rather than a dielectric constant profile, and in particular we use this method to demonstrate a new demultiplexing grating. The novel grating, which has not been developed using conventional techniques, accepts a vertical-incident Gaussian beam from a free-space and separates O-band (1300 nm) and C-band (1550 nm) light into separate waveguides. This inverse design concept is simple and extendable to a broad class of highly compact devices including frequency filters, mode converters, and spatial mode multiplexers.
LanguageEnglish
Pages1-5
Number of pages5
JournalScientific Reports
Volume4
DOIs
Publication statusPublished - 24 Nov 2014

Fingerprint

Demultiplexing
Coupler
Gratings
Wavelength
Force Method
Nanophotonics
Gaussian Beam
Gaussian beams
Dielectric Constant
Free Space
Search Methods
Converter
Waveguide
Waveguides
Chip
Permittivity
Demonstrations
Vertical
Filter
Target

Keywords

  • applied mathematics
  • optical materials and structures

Cite this

Piggott, Alexander Y. ; Lu, Jesse ; Babinec, Thomas M. ; Lagoudakis, Konstantinos G. ; Petykiewicz, Jan ; Vučković, Jelena. / Inverse design and implementation of a wavelength demultiplexing grating coupler. In: Scientific Reports. 2014 ; Vol. 4. pp. 1-5.
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Inverse design and implementation of a wavelength demultiplexing grating coupler. / Piggott, Alexander Y.; Lu, Jesse; Babinec, Thomas M.; Lagoudakis, Konstantinos G.; Petykiewicz, Jan; Vučković, Jelena.

In: Scientific Reports, Vol. 4, 24.11.2014, p. 1-5.

Research output: Contribution to journalArticle

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