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Optics Letters

Optics Letters


  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2493–2495

High-sensitivity fiber-tip pressure sensor with graphene diaphragm

Jun Ma, Wei Jin, Hoi Lut Ho, and Ji Yan Dai  »View Author Affiliations

Optics Letters, Vol. 37, Issue 13, pp. 2493-2495 (2012)

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A miniature fiber-tip pressure sensor was built by using an extremely thin graphene film as the diaphragm. The graphene also acts as a light reflector, which, in conjunction with the reflection at the fiber end–air interface, forms a low finesse Fabry–Perot interferometer. The graphene based sensor demonstrated pressure sensitivity over 39.4nm/kPa with a diaphragm diameter of 25 μm. The use of graphene as diaphragm material would allow highly sensitive and compact fiber-tip sensors.

© 2012 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: April 10, 2012
Revised Manuscript: April 23, 2012
Manuscript Accepted: April 23, 2012
Published: June 20, 2012

Jun Ma, Wei Jin, Hoi Lut Ho, and Ji Yan Dai, "High-sensitivity fiber-tip pressure sensor with graphene diaphragm," Opt. Lett. 37, 2493-2495 (2012)

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