Bubble-tunable fiber attenuator based on a quantum dots-filled liquid core

Yi Zhang; Jian Qu; Yi Liu; Jinjian Li; Jingfu Ye; Shiliang Qu; Weijiang Xu; Changqing Miao

doi:10.1016/j.optcom.2025.132287

Bubble-tunable fiber attenuator based on a quantum dots-filled liquid core

Yi Zhang
, Jian Qu
, Yi Liu
, Jinjian Li
, Jingfu Ye
, Shiliang Qu
, Weijiang Xu^*
, Changqing Miao^*

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology
Soochow University
Harbin Institute of Technology Weihai
Guilin University of Electronic Technology

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

Abstract

We demonstrate an optical fiber attenuator with reversible fluorescence regulation based on a light-controlled bubble mechanism. The laser-induced photothermal Marangoni force drives the bubble motion, which attenuates the fluorescence signal generated by quantum dots. Experimental results show that the device can achieve up to 3.2 × optical attenuation. Moreover, the response time can be flexibly tuned by adjusting the input power, with the fastest response reaching as low as 200 ms. This compact and functional device offers a novel approach for variable optical attenuation, optical switching, and sensing applications.

Original language	English
Article number	132287
Journal	Optics Communications
Volume	593
DOIs	https://doi.org/10.1016/j.optcom.2025.132287
State	Published - Nov 2025

Keywords

Fluorescence
Light-controlled bubble
Optical fiber attenuator
Quantum dots

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10.1016/j.optcom.2025.132287

Cite this

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title = "Bubble-tunable fiber attenuator based on a quantum dots-filled liquid core",

abstract = "We demonstrate an optical fiber attenuator with reversible fluorescence regulation based on a light-controlled bubble mechanism. The laser-induced photothermal Marangoni force drives the bubble motion, which attenuates the fluorescence signal generated by quantum dots. Experimental results show that the device can achieve up to 3.2 × optical attenuation. Moreover, the response time can be flexibly tuned by adjusting the input power, with the fastest response reaching as low as 200 ms. This compact and functional device offers a novel approach for variable optical attenuation, optical switching, and sensing applications.",

keywords = "Fluorescence, Light-controlled bubble, Optical fiber attenuator, Quantum dots",

author = "Yi Zhang and Jian Qu and Yi Liu and Jinjian Li and Jingfu Ye and Shiliang Qu and Weijiang Xu and Changqing Miao",

note = "Publisher Copyright: {\textcopyright} 2025 Elsevier B.V.",

year = "2025",

month = nov,

doi = "10.1016/j.optcom.2025.132287",

language = "英语",

volume = "593",

journal = "Optics Communications",

issn = "0030-4018",

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TY - JOUR

T1 - Bubble-tunable fiber attenuator based on a quantum dots-filled liquid core

AU - Zhang, Yi

AU - Qu, Jian

AU - Liu, Yi

AU - Li, Jinjian

AU - Ye, Jingfu

AU - Qu, Shiliang

AU - Xu, Weijiang

AU - Miao, Changqing

PY - 2025/11

Y1 - 2025/11

N2 - We demonstrate an optical fiber attenuator with reversible fluorescence regulation based on a light-controlled bubble mechanism. The laser-induced photothermal Marangoni force drives the bubble motion, which attenuates the fluorescence signal generated by quantum dots. Experimental results show that the device can achieve up to 3.2 × optical attenuation. Moreover, the response time can be flexibly tuned by adjusting the input power, with the fastest response reaching as low as 200 ms. This compact and functional device offers a novel approach for variable optical attenuation, optical switching, and sensing applications.

AB - We demonstrate an optical fiber attenuator with reversible fluorescence regulation based on a light-controlled bubble mechanism. The laser-induced photothermal Marangoni force drives the bubble motion, which attenuates the fluorescence signal generated by quantum dots. Experimental results show that the device can achieve up to 3.2 × optical attenuation. Moreover, the response time can be flexibly tuned by adjusting the input power, with the fastest response reaching as low as 200 ms. This compact and functional device offers a novel approach for variable optical attenuation, optical switching, and sensing applications.

KW - Fluorescence

KW - Light-controlled bubble

KW - Optical fiber attenuator

KW - Quantum dots

UR - https://www.scopus.com/pages/publications/105012631671

U2 - 10.1016/j.optcom.2025.132287

DO - 10.1016/j.optcom.2025.132287

M3 - 文章

AN - SCOPUS:105012631671

SN - 0030-4018

VL - 593

JO - Optics Communications

JF - Optics Communications

M1 - 132287

ER -

Bubble-tunable fiber attenuator based on a quantum dots-filled liquid core

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Keywords

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