Abstract
Combined the large evanescent field of microfiber with the high thermal conductivity of graphene, a sensitive all-fiber temperature sensor based on graphene-assisted micro fiber is proposed and experimentally demonstrated. Microfiber can be easily attached with graphene due to the electrostatic 6 force, resulting in an effective interaction between graphene and the evanescent field of microfiber. The change of the ambient temperature has a great influence on the conductivity of graphene, leading to the variation of the effective refractive index of microfiber. Consequently, the optical power transmission will be changed. The temperature sensitivity of 0.1018 dB/°C in the heating process and 0.1052 dB/°C in the cooling process as well as a high resolution of 0.0098 °C is obtained in the experiment. The scheme may have great potential in sensing fields owing to the advantages of high sensitivity, compact size, and low cost.
| Original language | English |
|---|---|
| Pages (from-to) | 383-386 |
| Number of pages | 4 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 28 |
| Issue number | 4 |
| Early online date | 26 Oct 2015 |
| DOIs | |
| Publication status | Published - 16 Feb 2016 |
Bibliographical note
© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Funding: National Natural Science Foundation of China (61275004); Natural Science Foundation of Hubei Province for Distinguished Young Scholars (2014CFA036); EC’s Marie Curie International Incoming Fellowship (328263).
Keywords
- evanescent field
- graphene
- microfiber
- temperature sensor