Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry

Umair A. Korai, Alaine H. Bermello, Michael J. Strain, Ivan Glesk, Aitor V. Velasco

Research output: Contribution to journal › Article

Abstract

Temperature dependence is one of the main challenges of the silicon-on-insulator platform due to the large thermo-optic coefficient of its core material. In this work, to the best of our knowledge, we propose a design of an all-passive athermal silicon-on-insulator Mach-Zehnder interferometer (MZI) with the minimal temperature sensitivity reported to date. The MZI’s temperature compensation was achieved by optimizing the relative length of its wire and subwavelength arms and by tailoring the thermal response of the subwavelength structure. Simulations of the device performance showed that the overall temperature sensitivity of 7.5 pm/K could be achieved over a 100 nm spectral range near the 1550 nm region.
Original languageEnglish
Number of pages12
JournalIEEE Photonics Journal
Volume11
Issue number6
Early online date25 Sep 2019
DOIs
Publication statusPublished - 31 Dec 2019

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Metamaterials
Interferometers
interferometers
chips
insulators
temperature compensation
silicon
Mach-Zehnder interferometers
platforms
wire
optics
Silicon
Temperature
temperature dependence
temperature
coefficients
Optics
simulation
Wire

Keywords

  • integrated optics
  • athermal design
  • spectroscopy
  • thermo-optic effects
  • ilicon-on-insulator

Cite this

Korai, Umair A. ; Bermello, Alaine H. ; Strain, Michael J. ; Glesk, Ivan ; Velasco, Aitor V. . / Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry. In: IEEE Photonics Journal. 2019 ; Vol. 11, No. 6.
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abstract = "Temperature dependence is one of the main challenges of the silicon-on-insulator platform due to the large thermo-optic coefficient of its core material. In this work, to the best of our knowledge, we propose a design of an all-passive athermal silicon-on-insulator Mach-Zehnder interferometer (MZI) with the minimal temperature sensitivity reported to date. The MZI’s temperature compensation was achieved by optimizing the relative length of its wire and subwavelength arms and by tailoring the thermal response of the subwavelength structure. Simulations of the device performance showed that the overall temperature sensitivity of 7.5 pm/K could be achieved over a 100 nm spectral range near the 1550 nm region.",
keywords = "integrated optics, athermal design, spectroscopy, thermo-optic effects, ilicon-on-insulator",
author = "Korai, {Umair A.} and Bermello, {Alaine H.} and Strain, {Michael J.} and Ivan Glesk and Velasco, {Aitor V.}",
year = "2019",
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language = "English",
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Korai, UA, Bermello, AH, Strain, MJ, Glesk, I & Velasco, AV 2019, 'Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry', IEEE Photonics Journal, vol. 11, no. 6. https://doi.org/10.1109/JPHOT.2019.2943774

Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry. / Korai, Umair A.; Bermello, Alaine H. ; Strain, Michael J.; Glesk, Ivan; Velasco, Aitor V. .

In: IEEE Photonics Journal, Vol. 11, No. 6, 31.12.2019.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry

AU - Korai, Umair A.

AU - Bermello, Alaine H.

AU - Strain, Michael J.

AU - Glesk, Ivan

AU - Velasco, Aitor V.

PY - 2019/12/31

Y1 - 2019/12/31

N2 - Temperature dependence is one of the main challenges of the silicon-on-insulator platform due to the large thermo-optic coefficient of its core material. In this work, to the best of our knowledge, we propose a design of an all-passive athermal silicon-on-insulator Mach-Zehnder interferometer (MZI) with the minimal temperature sensitivity reported to date. The MZI’s temperature compensation was achieved by optimizing the relative length of its wire and subwavelength arms and by tailoring the thermal response of the subwavelength structure. Simulations of the device performance showed that the overall temperature sensitivity of 7.5 pm/K could be achieved over a 100 nm spectral range near the 1550 nm region.

AB - Temperature dependence is one of the main challenges of the silicon-on-insulator platform due to the large thermo-optic coefficient of its core material. In this work, to the best of our knowledge, we propose a design of an all-passive athermal silicon-on-insulator Mach-Zehnder interferometer (MZI) with the minimal temperature sensitivity reported to date. The MZI’s temperature compensation was achieved by optimizing the relative length of its wire and subwavelength arms and by tailoring the thermal response of the subwavelength structure. Simulations of the device performance showed that the overall temperature sensitivity of 7.5 pm/K could be achieved over a 100 nm spectral range near the 1550 nm region.

KW - integrated optics

KW - athermal design

KW - spectroscopy

KW - thermo-optic effects

KW - ilicon-on-insulator

U2 - 10.1109/JPHOT.2019.2943774

DO - 10.1109/JPHOT.2019.2943774

M3 - Article

VL - 11

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

SN - 1943-0655

IS - 6

ER -

Korai UA, Bermello AH, Strain MJ, Glesk I, Velasco AV. Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry. IEEE Photonics Journal. 2019 Dec 31;11(6). https://doi.org/10.1109/JPHOT.2019.2943774

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