Sub-micrometer resolution liquid level sensor based on a hollow core fiber structure

Dejun Liu; Fengzi Ling; Rahul Kumar; Arun Kumar Mallik; Ke Tian; Changyu Shen; Gerald Farrell; Yuliya Semenova; Qiang Wu; Pengfei Wang

doi:10.1364/OL.44.002125

Sub-micrometer resolution liquid level sensor based on a hollow core fiber structure

Dejun Liu, Fengzi Ling, Rahul Kumar, Arun Kumar Mallik, Ke Tian, Changyu Shen, Gerald Farrell, Yuliya Semenova, Qiang Wu, Pengfei Wang

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

48 Citations (Scopus)

74 Downloads (Pure)

Abstract

Liquid level measurement in lab on a chip (LOC) devices is a challenging task due to the demand for a sensor with ultra-high resolution but miniature in nature. In this Letter, we report a simple, compact in size, yet highly sensitive liquid level sensor based on a hollow core fiber (HCF) structure. The sensor is fabricated by fusion splicing a short section of HCF between two singlemode fibers (SMFs). Sensor samples with different lengths of HCF have been studied; it is found that the sensor with a HCF length of ∼4.73 mm shows the best sensitivity of ∼0.014 dB/μm, corresponding to a liquid level resolution of ∼0.7 μm, which is over five times higher than that of the previous reported fiber optic sensors to date. In addition, experimental results have demonstrated that the proposed sensor shows good repeatability of measurement and a very low cross sensitivity to changes in the refractive index of the surrounding medium.

Original language	English
Pages (from-to)	2125-2128
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	8
DOIs	https://doi.org/10.1364/OL.44.002125
Publication status	Published - 15 Apr 2019

Access to Document

10.1364/OL.44.002125

Liu et al - Sub-micrometer resolution liquid level sensor based AAMAccepted author manuscript, 1.32 MB

Cite this

@article{dd3d8c8869744169bea7043ac86dd9aa,

title = "Sub-micrometer resolution liquid level sensor based on a hollow core fiber structure",

abstract = "Liquid level measurement in lab on a chip (LOC) devices is a challenging task due to the demand for a sensor with ultra-high resolution but miniature in nature. In this Letter, we report a simple, compact in size, yet highly sensitive liquid level sensor based on a hollow core fiber (HCF) structure. The sensor is fabricated by fusion splicing a short section of HCF between two singlemode fibers (SMFs). Sensor samples with different lengths of HCF have been studied; it is found that the sensor with a HCF length of ∼4.73 mm shows the best sensitivity of ∼0.014 dB/μm, corresponding to a liquid level resolution of ∼0.7 μm, which is over five times higher than that of the previous reported fiber optic sensors to date. In addition, experimental results have demonstrated that the proposed sensor shows good repeatability of measurement and a very low cross sensitivity to changes in the refractive index of the surrounding medium.",

author = "Dejun Liu and Fengzi Ling and Rahul Kumar and Mallik, \{Arun Kumar\} and Ke Tian and Changyu Shen and Gerald Farrell and Yuliya Semenova and Qiang Wu and Pengfei Wang",

year = "2019",

month = apr,

day = "15",

doi = "10.1364/OL.44.002125",

language = "English",

volume = "44",

pages = "2125--2128",

journal = "Optics Letters",

issn = "0146-9592",

publisher = "Optica Publishing Group (formerly OSA)",

number = "8",

}

TY - JOUR

T1 - Sub-micrometer resolution liquid level sensor based on a hollow core fiber structure

AU - Liu, Dejun

AU - Ling, Fengzi

AU - Kumar, Rahul

AU - Mallik, Arun Kumar

AU - Tian, Ke

AU - Shen, Changyu

AU - Farrell, Gerald

AU - Semenova, Yuliya

AU - Wu, Qiang

AU - Wang, Pengfei

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Liquid level measurement in lab on a chip (LOC) devices is a challenging task due to the demand for a sensor with ultra-high resolution but miniature in nature. In this Letter, we report a simple, compact in size, yet highly sensitive liquid level sensor based on a hollow core fiber (HCF) structure. The sensor is fabricated by fusion splicing a short section of HCF between two singlemode fibers (SMFs). Sensor samples with different lengths of HCF have been studied; it is found that the sensor with a HCF length of ∼4.73 mm shows the best sensitivity of ∼0.014 dB/μm, corresponding to a liquid level resolution of ∼0.7 μm, which is over five times higher than that of the previous reported fiber optic sensors to date. In addition, experimental results have demonstrated that the proposed sensor shows good repeatability of measurement and a very low cross sensitivity to changes in the refractive index of the surrounding medium.

AB - Liquid level measurement in lab on a chip (LOC) devices is a challenging task due to the demand for a sensor with ultra-high resolution but miniature in nature. In this Letter, we report a simple, compact in size, yet highly sensitive liquid level sensor based on a hollow core fiber (HCF) structure. The sensor is fabricated by fusion splicing a short section of HCF between two singlemode fibers (SMFs). Sensor samples with different lengths of HCF have been studied; it is found that the sensor with a HCF length of ∼4.73 mm shows the best sensitivity of ∼0.014 dB/μm, corresponding to a liquid level resolution of ∼0.7 μm, which is over five times higher than that of the previous reported fiber optic sensors to date. In addition, experimental results have demonstrated that the proposed sensor shows good repeatability of measurement and a very low cross sensitivity to changes in the refractive index of the surrounding medium.

UR - https://www.scopus.com/pages/publications/85064819440

U2 - 10.1364/OL.44.002125

DO - 10.1364/OL.44.002125

M3 - Article

SN - 0146-9592

VL - 44

SP - 2125

EP - 2128

JO - Optics Letters

JF - Optics Letters

IS - 8

ER -

Sub-micrometer resolution liquid level sensor based on a hollow core fiber structure

Abstract

Access to Document

Other files and links

Fingerprint

Cite this