Micro-size tapered silica fibers for sensing applications

Gonzales, Roddy Elky Ramos; Chillcce, E. F.; Barbosa, L. C.

doi:10.1117/12.892784

Cited by 1 publication

(3 citation statements)

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“…As shown in Figure 3 a, the process begins with the tapering of a standard SMF using a Vytron machine [ 45 , 46 ]. It heats a section of the fiber and pulls it apart using a precise tension control system.…”

Section: Methodsmentioning

confidence: 99%

“…Each step is executed carefully to ensure the highest quality a reliability of the fabricated tip-FPI. As shown in Figure 3a, the process begins with the tapering of a standard SMF us a Vytron machine [45,46]. It heats a section of the fiber and pulls it apart using a prec As shown in Figure 3a, the process begins with the tapering of a standard SMF using a Vytron machine [45,46].…”

Section: Sensor Fabrication and Operation Principlementioning

confidence: 99%

“…As shown in Figure 3a, the process begins with the tapering of a standard SMF us a Vytron machine [45,46]. It heats a section of the fiber and pulls it apart using a prec As shown in Figure 3a, the process begins with the tapering of a standard SMF using a Vytron machine [45,46]. It heats a section of the fiber and pulls it apart using a precise tension control system.…”

Section: Sensor Fabrication and Operation Principlementioning

confidence: 99%

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Fabry–Perot Interferometric Fiber-Optic Sensor for Rapid and Accurate Thrombus Detection

Ghasemi

Jeong

et al. 2023

Biosensors

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We present a fiber-optic sensor based on the principles of a Fabry–Perot interferometer (FPI), which promptly, sensitively, and precisely detects blood clot formation. This sensor has two types of sensor tips; the first was crafted by splicing a tapered fiber into a single-mode fiber (SMF), where fine-tuning was achieved by adjusting the tapered diameter and length. The second type is an ultra-compact blood FPI situated on the core of a single-mode fiber. The sensor performance was evaluated via clot-formation-indicating spectrum shifts induced by the varied quantities of a thrombin reagent introduced into the blood. The most remarkable spectral sensitivity of the micro-tip fiber type was approximately 7 nm/μL, with a power sensitivity of 4.1 dB/μL, obtained with a taper fiber diameter and length of 55 and 300 μm, respectively. For the SMF type, spectral sensitivity was observed to be 8.7 nm/μL, with an optical power sensitivity of 0.4 dB/μL. This pioneering fiber-optic thrombosis sensor has the potential for in situ applications, healthcare, medical monitoring, harsh environments, and chemical and biological sensing. The study underscores the scope of optical technology in thrombus detection, establishing a platform for future medical research and application.

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Section: Methodsmentioning

confidence: 99%

Section: Sensor Fabrication and Operation Principlementioning

confidence: 99%