Fiber temperature and humidity sensor based on photonic crystal fiber coated with graphene oxide

Li, Jiaxin; Tong, Zhengrong; Jing, Lei; Zhang, Weihua; Qin, Juan; Liu, Jingwei

doi:10.1016/j.optcom.2020.125707

Cited by 50 publications

(15 citation statements)

References 14 publications

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“…SPRs are also famous in interferometry for their highly sensitive response to temperature. They can be fabricated by pouring nanoparticles [27] into the hollow cores of photonic crystal fibers (PCF) [28] or depositing the nano-films [29,30] on a special optical fiber. However, these structures involve multiple complexities during fabrication, and expensive devices are also reported.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Abbas¹,

Mumtaz²,

Dai³

et al. 2021

PIER Letters

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A highly sensitive temperature sensor based on a polymer cavity of a Fabry-Perot interferometer (FPI) is experimentally demonstrated. The interferometer gives ease in fabrication, and it can be formed by the induction of a thermos-sensitive polymer layer in between two single mode fibers (SMFs). The polymer is used as an FPI cavity for temperature sensing. Due to high thermal expansion coefficient (TEC) and thermos-optic coefficient (TOC) of polymer make the interferometer highly sensitive to ambient temperature. The maximum temperature sensitivity of 2.2209 nm/ • C for the polymer FPI cavity of 40.61 µm in the ambient temperature range of 28 • C to 34 • C is obtained. The proposed sensor shows the advantages of high sensitivity, compactness, simple fabrication, and low cost. Thus, it may become a part of various practical applications in the field of environmental science and engineering sciences.

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Section: Introductionmentioning

confidence: 99%

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Abbas¹,

Mumtaz²,

Dai³

et al. 2021

PIER Letters

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“…Many of the proposed optical sensors are sensitive to temperature [ 20 , 39 ] and thus cannot be used independently for precise RH determination. Glycerol is sensitive to relative humidity and has a very low thermal expansion coefficient [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

High-Sensitivity Whispering Gallery Mode Humidity Sensor Based on Glycerol Microdroplet Volumetric Expansion

Reinis

Milgrave

Draguns

et al. 2021

Sensors

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We demonstrate a highly sensitive whispering gallery mode (WGM) relative humidity (RH) sensor based on a glycerol microdroplet. WGMs were excited using a 760 nm tunable semiconductor laser. We used free space coupling, which is effective when using a liquid resonator. A detailed analysis of different parameters influencing the sensor’s characteristics (sensitivity, hysteresis, resolution, stability, and temperature) is presented. The sensitivity of the sensor is one of the highest reported (2.85 nm/% RH in the range 50–70% RH with the resolution 1 × 10−4% RH). This type of humidity sensor has several advantages, such as high sensitivity, extended lifetime, good repeatability, and low cost, as well as the use of a non-toxic and environmentally friendly liquid.

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“…Woyessa coated polycarbonate on the surface of fiber Bragg grating and the RH sensitivity is only 7.3 pm/%RH [18]. GO, a common derivative of graphene, is widely used in the field of RH sensing due to its excellent dispersibility, hydrophilicity, larger aspect ratio and fast reaction with water molecules, enabling it as an excellent RH sensitive material for various RH sensing devices [19][20][21][22]. GO contains two sp2-and sp3-hybrid carbon atoms.…”

Section: Introductionmentioning

confidence: 99%

U-Shape Panda Polarization-Maintaining Microfiber Sensor Coated With Graphene Oxide for Relative Humidity Measurement

Chen

Liu

et al. 2021

J. Lightwave Technol.

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A new U-shape panda polarization-maintaining fiber (PPMF) based microfiber interferometer coated with graphene oxide (GO) film was proposed and experimentally demonstrated for relative humidity (RH) sensing. Experimental results show that the U-shape sensor has refractive index (RI) sensitivity of 1692.5 nm/RIU in the RI range of 1.33 when the diameter of the taper waist is 10.08 µm. The surface of the U-shape sensor was then modified chemically and coated with a thin layer of GO film (59.64 nm) for RH detection and the sensitivity is proportional to RH: as RH increases from 30% to 98%, the sensitivity increases from 0.111 to 0.361 nm/%RH and the response time is 0.28 s. In addition, the cross sensitivity to temperature, stability, reproducibility, and response/recovery time of the RH sensor were studied in detail. The proposed U-shape fiber RH sensor has advantage of high sensitivity, good reproducibility and fast response (0.28 s), which has potential application in areas requiring dynamic measurement of RH variations such as industrial product fabrication process control and breath state monitoring.

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Fiber temperature and humidity sensor based on photonic crystal fiber coated with graphene oxide

Cited by 50 publications

References 14 publications

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

Highly Sensitive Polymer Based Fabry-Perot Interferometer for Temperature Sensing

High-Sensitivity Whispering Gallery Mode Humidity Sensor Based on Glycerol Microdroplet Volumetric Expansion

U-Shape Panda Polarization-Maintaining Microfiber Sensor Coated With Graphene Oxide for Relative Humidity Measurement

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