State-of-the-Art Optical Microfiber Coupler Sensors for Physical and Biochemical Sensing Applications
| Autor: | Manthangal Sivanesan Aruna Gandhi, Yuanfang Zhao, H. Y. Fu, Maolin Dai, Zhenmin Chen, Qian Li |
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| Rok vydání: | 2020 |
| Předmět: |
optical fiber
Optical fiber Materials science Fabrication business.product_category Sensing applications lcsh:Biotechnology Clinical Biochemistry 02 engineering and technology Biosensing Techniques Review sensors 01 natural sciences law.invention 010309 optics 020210 optoelectronics & photonics physical sensors law lcsh:TP248.13-248.65 0103 physical sciences Microfiber 0202 electrical engineering electronic engineering information engineering Fiber Optic Technology microfiber coupler Optical Fibers business.industry Temperature chemical sensors General Medicine Cladding (fiber optics) biosensors Refractometry Optoelectronics Nanometre business Biosensor Refractive index |
| Zdroj: | Biosensors Biosensors, Vol 10, Iss 179, p 179 (2020) |
| ISSN: | 2079-6374 |
| Popis: | An optical fiber coupler is a simple and fundamental component for fiber optic technologies that works by reducing the fiber diameter to hundred nanometers or several micrometers. The microfiber coupler (MFC) has regained interest in optical fiber sensing in recent years. The subwavelength diameter rationales vast refractive index (RI) contrast between microfiber “core” and surrounding “cladding”, a large portion of energy transmits in the form of an evanescent wave over the fiber surface that determines the MFC ultrasensitive to local environmental changes. Consequently, MFC has the potential to develop as a sensor. With the merits of easy fabrication, low cost and compact size, numerous researches have been carried out on different microfiber coupler configurations for various sensing applications, such as refractive index (RI), temperature, humidity, magnetic field, gas, biomolecule, and so on. In this manuscript, the fabrication and operation principle of an MFC are elaborated and recent advances of MFC-based sensors for scientific and technological applications are comprehensively reviewed. |
| Databáze: | OpenAIRE |
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