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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 7 — Apr. 8, 2013
  • pp: 8231–8239

In-line polarization-dependent microfiber interferometers and their applications in UWB signal generation

Ping Zhao, Jihua Zhang, Yuan Yu, Jianji Dong, Lei Shi, Yang Liu, and Xinliang Zhang  »View Author Affiliations

Optics Express, Vol. 21, Issue 7, pp. 8231-8239 (2013)

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A novel in-line polarization-dependent microfiber interferometer (PD-MFI) is proposed and experimentally demonstrated, which is tapered from a commercial polarization-maintaining fiber. Different from conventional MFIs, the transmission spectra of such MFIs are highly polarization-dependent, due to the mode-sensitive birefringence. The experimental results agree well with the theoretical predictions. Moreover, exploiting the polarization-dependent property of PD-MFIs, we demonstrate a simple and flexible scheme of generating polarity-switchable ultra-wideband pulses in the optical domain. Doublet pulses with a central frequency of 6.28 GHz and a 10-dB bandwidth of 7.86 GHz are obtained. Hence, with the advantages of being fiberized, simple fabrication and robustness, these PD-MFIs can be attractive elements in optical signal processing, optical sensing, optical fiber communication, and microwave photonics.

© 2013 OSA

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(230.3990) Optical devices : Micro-optical devices
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: December 20, 2012
Revised Manuscript: February 27, 2013
Manuscript Accepted: February 28, 2013
Published: March 28, 2013

Ping Zhao, Jihua Zhang, Yuan Yu, Jianji Dong, Lei Shi, Yang Liu, and Xinliang Zhang, "In-line polarization-dependent microfiber interferometers and their applications in UWB signal generation," Opt. Express 21, 8231-8239 (2013)

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