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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 16 — Aug. 15, 2013
  • pp: 3036–3039

Optical fiber in-line Mach–Zehnder interferometer based on dual internal mirrors formed by a hollow sphere pair

T. Y. Hu and D. N. Wang  »View Author Affiliations


Optics Letters, Vol. 38, Issue 16, pp. 3036-3039 (2013)
http://dx.doi.org/10.1364/OL.38.003036


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Abstract

We demonstrate a fiber in-line Mach–Zehnder interferometer based on dual internal mirrors formed by a hollow sphere pair and fabricated by femtosecond laser micromachining together with the fusion splicing technique. The hollow sphere surface adjacent to the fiber core can reflect part of the incident light beam to the air–cladding interface, where the light beam is reflected again before returning to the fiber core by another hollow sphere surface and recombining with the light beam remaining in the fiber core. Such an interferometer is miniature and robust, and is sensitive to environmental variations and allows simultaneous surrounding refractive index, temperature, and curvature measurement.

© 2013 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.4040) Optical devices : Mirrors

ToC Category:
Optical Devices

History
Original Manuscript: May 2, 2013
Revised Manuscript: July 15, 2013
Manuscript Accepted: July 17, 2013
Published: August 7, 2013

Citation
T. Y. Hu and D. N. Wang, "Optical fiber in-line Mach–Zehnder interferometer based on dual internal mirrors formed by a hollow sphere pair," Opt. Lett. 38, 3036-3039 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-16-3036

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