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Demonstration of a microelectromechanical tunable F-P cavity based on graphene-bonded fiber devices

Chen, Y., Li, C., Chen, J-H., Zheng, Z., Sun, T. ORCID: 0000-0003-3861-8933, Grattan, K. T. V. ORCID: 0000-0003-2250-3832 and Xu, F. (2019). Demonstration of a microelectromechanical tunable F-P cavity based on graphene-bonded fiber devices. Optics Letters, 44(7), pp. 1876-1879. doi: 10.1364/OL.44.001876

Abstract

Taking advantage of the high thermal conductivity of graphene, this paper demonstrates a microelectromechanical (MEM) tunable Fabry-Perot (F-P) cavity, based on a graphene-bonded fiber device (GFD) which acts as a microheater. By increasing the electric current from 0 mA to 8 mA in the heater, the temperature of the GFD can rise and approach a value of 760 K theoretically. This high temperature will cause a deformation of the fiber, allowing the graphene-bonded fiber end to forma gap adjustable F-P cavity with a cleaved single mode fiber. The gap in the cavity can be reduced by increasing the current applied, leading the transmittance of the cavity to change. In this work, a highly sensitive current sensor (5.9x10⁵nm/A²) and a tunable modelocked fiber laser (1.2x10⁴nm/A²) are created based on the MEM tunable F-P cavity.

Publication Type: Article
Additional Information: © 2019 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Electrical & Electronic Engineering
URI: http://openaccess.city.ac.uk/id/eprint/21877
[img] Text - Accepted Version
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