Highly Efficient Compact Acousto-Optic Modulator Based on a Hybrid-Lattice Hollow Core Fiber

Ricardo E. da Silva; Jonas H. Osório; David J. Webb; Frédéric Gérôme; Fetah Benabid; Marcos A. R. Franco; Cristiano M. B. Cordeiro

doi:10.1109/lpt.2024.3487478

Highly Efficient Compact Acousto-Optic Modulator Based on a Hybrid-Lattice Hollow Core Fiber

Ricardo E. da Silva, Jonas H. Osório, David J. Webb, Frédéric Gérôme, Fetah Benabid, Marcos A. R. Franco, Cristiano M. B. Cordeiro

Aston Institute of Photonic Technologies (AiPT)

Research output: Contribution to journal › Article › peer-review

Abstract

We demonstrate the acousto-optic modulation of a hybrid-lattice hollow core fiber (HL-HCF) for the first time. For many years, optical fibers with reduced diameters have been the main solution to increase the interaction of acoustic and optical waves. However, the high drive voltages and large modulator components still employed drastically affect the efficiency and miniaturization of these devices. Here, we experimentally show that combining Kagomé and tubular lattices in HL-HCFs allows for enhancing the amplification of the acoustic waves and the modulation of the guided optical modes, thus providing high modulation efficiency even when using a fiber with a 240 μ m diameter. To the best of our knowledge, the measured HL-HCF’s modulation efficiency (1.3 dB/V) is the highest compared to devices employing reduced diameter fibers. Additionally, we demonstrate a compact acousto-optic modulator with driver dimensions smaller than the HL-HCF diameter. Overall, our results show a promising alternative to solve the compromise of speed, efficiency, and compactness for integration with microscale all-fiber photonic devices.

Original language	English
Pages (from-to)	1441-1444
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	36
Issue number	24
Early online date	28 Oct 2024
DOIs	https://doi.org/10.1109/lpt.2024.3487478
Publication status	Published - 15 Dec 2024

Bibliographical note

Copyright © 2024, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords

All-fiber acousto-optic devices
hybrid-lattice hollow core fiber
modulation efficiency

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10.1109/lpt.2024.3487478

Cite this

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title = "Highly Efficient Compact Acousto-Optic Modulator Based on a Hybrid-Lattice Hollow Core Fiber",

abstract = "We demonstrate the acousto-optic modulation of a hybrid-lattice hollow core fiber (HL-HCF) for the first time. For many years, optical fibers with reduced diameters have been the main solution to increase the interaction of acoustic and optical waves. However, the high drive voltages and large modulator components still employed drastically affect the efficiency and miniaturization of these devices. Here, we experimentally show that combining Kagom{\'e} and tubular lattices in HL-HCFs allows for enhancing the amplification of the acoustic waves and the modulation of the guided optical modes, thus providing high modulation efficiency even when using a fiber with a 240 μ m diameter. To the best of our knowledge, the measured HL-HCF{\textquoteright}s modulation efficiency (1.3 dB/V) is the highest compared to devices employing reduced diameter fibers. Additionally, we demonstrate a compact acousto-optic modulator with driver dimensions smaller than the HL-HCF diameter. Overall, our results show a promising alternative to solve the compromise of speed, efficiency, and compactness for integration with microscale all-fiber photonic devices.",

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AU - Gérôme, Frédéric

AU - Benabid, Fetah

AU - Franco, Marcos A. R.

AU - Cordeiro, Cristiano M. B.

N1 - Copyright © 2024, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2024/12/15

Y1 - 2024/12/15

N2 - We demonstrate the acousto-optic modulation of a hybrid-lattice hollow core fiber (HL-HCF) for the first time. For many years, optical fibers with reduced diameters have been the main solution to increase the interaction of acoustic and optical waves. However, the high drive voltages and large modulator components still employed drastically affect the efficiency and miniaturization of these devices. Here, we experimentally show that combining Kagomé and tubular lattices in HL-HCFs allows for enhancing the amplification of the acoustic waves and the modulation of the guided optical modes, thus providing high modulation efficiency even when using a fiber with a 240 μ m diameter. To the best of our knowledge, the measured HL-HCF’s modulation efficiency (1.3 dB/V) is the highest compared to devices employing reduced diameter fibers. Additionally, we demonstrate a compact acousto-optic modulator with driver dimensions smaller than the HL-HCF diameter. Overall, our results show a promising alternative to solve the compromise of speed, efficiency, and compactness for integration with microscale all-fiber photonic devices.

AB - We demonstrate the acousto-optic modulation of a hybrid-lattice hollow core fiber (HL-HCF) for the first time. For many years, optical fibers with reduced diameters have been the main solution to increase the interaction of acoustic and optical waves. However, the high drive voltages and large modulator components still employed drastically affect the efficiency and miniaturization of these devices. Here, we experimentally show that combining Kagomé and tubular lattices in HL-HCFs allows for enhancing the amplification of the acoustic waves and the modulation of the guided optical modes, thus providing high modulation efficiency even when using a fiber with a 240 μ m diameter. To the best of our knowledge, the measured HL-HCF’s modulation efficiency (1.3 dB/V) is the highest compared to devices employing reduced diameter fibers. Additionally, we demonstrate a compact acousto-optic modulator with driver dimensions smaller than the HL-HCF diameter. Overall, our results show a promising alternative to solve the compromise of speed, efficiency, and compactness for integration with microscale all-fiber photonic devices.

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Highly Efficient Compact Acousto-Optic Modulator Based on a Hybrid-Lattice Hollow Core Fiber

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