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

doi:10.1109/JPHOT.2019.2943774

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

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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.

Original language	English
Number of pages	12
Journal	IEEE Photonics Journal
Volume	11
Issue number	6
Early online date	25 Sep 2019
DOIs	https://doi.org/10.1109/JPHOT.2019.2943774
Publication status	Published - 31 Dec 2019

Keywords

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

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Korai-etal-PJ-2019-Design-of-an-athermal-interferometer-based-on-tailored-subwavelength-metamaterials-for-on-chip-microspectrometryFinal published version, 2.55 MBLicence: CC BY 4.0

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SENSIBLE: SENSors and Intelligence in BuiLt Environment (SENSIBLE) MSCA RISE
Stankovic, L., Glesk, I., Gleskova, H. & Stankovic, V.
European Commission - Horizon 2020
1/01/17 → 31/12/20
Project: Research

Cite this

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title = "Design of an athermal interferometer based on tailored subwavelength metamaterials for on-chip microspectrometry",

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{\textquoteright}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.}",

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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

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DO - 10.1109/JPHOT.2019.2943774

M3 - Article

VL - 11

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

SN - 1943-0655

IS - 6

ER -

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

Abstract

Keywords

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SENSIBLE: SENSors and Intelligence in BuiLt Environment (SENSIBLE) MSCA RISE

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