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Miniature optical fiber current sensor based on a graphene membrane
- Source :
- Laser & Photonics Reviews. 9:517-522
- Publication Year :
- 2015
- Publisher :
- Wiley, 2015.
-
Abstract
- O R IG IN A L P A P ER Abstract The unique electronic and mechanical properties, of graphene make it an ideal material for nanoelectromechanical system (NEMS) applications. Here, a miniature optical fiber current sensor based on a quasistatic graphene NEMS with a graphene membrane covering the hole on a pre-etched fiber tip and two gold electrodes on opposite sides of the tip has been demonstrated. The sensor overcomes the shortcomings of conventional optical fiber current sensors based on thermal effects, such as relatively low sensitivity, long response time, and huge device size; it has simultaneously a high sensitivity of 2.2 × 105 nm/A2, a short response time of 0.25 s and a compact device size of 15 μm, and has found practical application. Using a smaller graphene membrane with better quality can reduce the response time to submillisecond levels with a more precise measurement system. The sensor presented in this paper may pave the way for the practical usage of optical fiber current sensors based on thermal effects.
- Subjects :
- Nanoelectromechanical systems
Optical fiber
Materials science
Graphene
business.industry
System of measurement
Response time
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
law
Electrode
Optoelectronics
Current sensor
Fiber
business
Subjects
Details
- ISSN :
- 18638880
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- Laser & Photonics Reviews
- Accession number :
- edsair.doi...........4d306b0056673b79a5f4b1068bd3c5e5