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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 25 — Dec. 16, 2013
  • pp: 31540–31547

Acquisition of phase-shift fiber grating spectra with 23.5 femtometer spectral resolution using DFB-LD

Cunguang Zhu, Jun Chang, Pengpeng Wang, Wei Wei, Sasa Zhang, Zhi Liu, and Gangding Peng  »View Author Affiliations

Optics Express, Vol. 21, Issue 25, pp. 31540-31547 (2013)

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A novel method based on distributed-feedback laser diode (DFB-LD) continuous wavelength-scanning for acquiring precise spectra of phase-shift fiber gratings is presented. Compared to the traditional method, the spectral resolution retrieved by this method is only limited by the optical line-width of the light source, which can reach up to the order of femtometer and is much higher than that of high-resolution optical spectrum analyzer (generally on the order of picometer). In addition, a Signal-to-Noise Ratio (SNR) advantage can be provided owing to a much higher spectral density of DFB-LD than amplified spontaneous emission (ASE) source. Precise spectra of three phase-shift fiber grating samples have been obtained at a resolution of 23.5 femtometer.

© 2013 Optical Society of America

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.4080) Fiber optics and optical communications : Modulation
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: October 23, 2013
Revised Manuscript: November 26, 2013
Manuscript Accepted: November 26, 2013
Published: December 13, 2013

Cunguang Zhu, Jun Chang, Pengpeng Wang, Wei Wei, Sasa Zhang, Zhi Liu, and Gangding Peng, "Acquisition of phase-shift fiber grating spectra with 23.5 femtometer spectral resolution using DFB-LD," Opt. Express 21, 31540-31547 (2013)

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