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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 24 — Dec. 2, 2013
  • pp: 29914–29920

Magnetic field tunability of optical microfiber taper integrated with ferrofluid

Yinping Miao, Jixuan Wu, Wei Lin, Kailiang Zhang, Yujie Yuan, Binbin Song, Hao Zhang, Bo Liu, and Jianquan Yao  »View Author Affiliations

Optics Express, Vol. 21, Issue 24, pp. 29914-29920 (2013)

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Optical microfiber taper has unique propagation properties, which provides versatile waveguide structure to design the tunable photonic devices. In this paper, the S-tapered microfiber is fabricated by using simple fusion spicing. The spectral characteristics of microfiber taper integrated with ferrofluid under different magnetic-field intensities have been theoretically analyzed and experimentally demonstrated. The spectrum are both found to become highly magnetic-field-dependent. The results indicate the transmission and wavelength of the dips are adjustable by changing magnetic field intensity. The response of this device to the magnetic field intensity exhibits a Langvin function. Moreover, there is a linear relationship between the transmission loss and magnetic field intensity for a magnetic field intensity range of 25 to 200Oe, and the sensitivities as high as 0.13056dB/Oe and 0.056nm/Oe have been achieved, respectively. This suggests a potential application of this device as a tunable all-in-fiber photonic device, such as magneto-optic modulator, filter, and sensing element.

© Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(160.3820) Materials : Magneto-optical materials
(060.4005) Fiber optics and optical communications : Microstructured fibers

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 20, 2013
Revised Manuscript: November 7, 2013
Manuscript Accepted: November 11, 2013

Yinping Miao, Jixuan Wu, Wei Lin, Kailiang Zhang, Yujie Yuan, Binbin Song, Hao Zhang, Bo Liu, and Jianquan Yao, "Magnetic field tunability of optical microfiber taper integrated with ferrofluid," Opt. Express 21, 29914-29920 (2013)

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