Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching

This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of op...

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Main Authors: Gyeongho Son, Youngho Jung, Kyoungsik Yu
Format: Article
Language:English
Published: IEEE 2017-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8008744/
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spelling doaj-861309fcf5014fa3b7e63f644deef79c2021-03-29T17:43:40ZengIEEEIEEE Photonics Journal1943-06552017-01-01951810.1109/JPHOT.2017.27386618008744Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical EtchingGyeongho Son0Youngho Jung1Kyoungsik Yu2School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaSchool of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South KoreaThis paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of optical fibers allows us simple and cost-effective fabrication of tapered fibers and multiports directional couplers. The simulation results agree well with the experimental observations on the propagation losses, which can be monitored in real-time by measuring the transmitted optical powers during the chemical etching process. The fabricated 2 × 2 fiber-optic directional coupler shows wavelength-insensitive operation within the telecommunication C-band with an excess insertion loss of less than 0.5 dB.https://ieeexplore.ieee.org/document/8008744/Fiber optics systemswaveguideswaveguide devices
collection DOAJ
language English
format Article
sources DOAJ
author Gyeongho Son
Youngho Jung
Kyoungsik Yu
spellingShingle Gyeongho Son
Youngho Jung
Kyoungsik Yu
Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
IEEE Photonics Journal
Fiber optics systems
waveguides
waveguide devices
author_facet Gyeongho Son
Youngho Jung
Kyoungsik Yu
author_sort Gyeongho Son
title Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
title_short Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
title_full Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
title_fullStr Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
title_full_unstemmed Tapered Optical Fiber Couplers Fabricated by Droplet-Based Chemical Etching
title_sort tapered optical fiber couplers fabricated by droplet-based chemical etching
publisher IEEE
series IEEE Photonics Journal
issn 1943-0655
publishDate 2017-01-01
description This paper presents a fabrication method for 2 × 2 twisted fiber-optic directional couplers based on biconical low-loss tapered optical fibers using a two-step wet-etching technique with hydrofluoric acid-based droplets and surface tension-driven flows. The droplet-based wet etching of optical fibers allows us simple and cost-effective fabrication of tapered fibers and multiports directional couplers. The simulation results agree well with the experimental observations on the propagation losses, which can be monitored in real-time by measuring the transmitted optical powers during the chemical etching process. The fabricated 2 × 2 fiber-optic directional coupler shows wavelength-insensitive operation within the telecommunication C-band with an excess insertion loss of less than 0.5 dB.
topic Fiber optics systems
waveguides
waveguide devices
url https://ieeexplore.ieee.org/document/8008744/
work_keys_str_mv AT gyeonghoson taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching
AT younghojung taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching
AT kyoungsikyu taperedopticalfibercouplersfabricatedbydropletbasedchemicaletching
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