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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 3 — Feb. 1, 2014
  • pp: 540–543

Point-by-point inscription of phase-shifted fiber Bragg gratings with electro-optic amplitude modulated femtosecond laser pulses

Jörg Burgmeier, Christian Waltermann, Günter Flachenecker, and Wolfgang Schade  »View Author Affiliations


Optics Letters, Vol. 39, Issue 3, pp. 540-543 (2014)
http://dx.doi.org/10.1364/OL.39.000540


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Abstract

Femtosecond laser pulses were used for the direct point-by-point inscription of phase-shifted fiber Bragg gratings (FBGs) in a single fabrication step without postprocessing. An electro-optic amplitude modulator is used in the setup to generate a defined delay between two identical laser pulse trains for the grating inscription. The grating structure with a central phase shift is formed by focusing the modulated laser pulses into the core of a fiber, while the fiber is translated with a constant velocity. The induced phase shift leads to a narrow transmission band with a bandwidth considerably below 10 pm within the stop band of the FBG. The inscribed FBGs show a birefringence of 3.9×105 whereas their temperature and strain sensitivities are 10.4pm/K and 1.4pm/μstrain, respectively. The fabrication process is fast and offers a high grade of flexibility for the control of all grating parameters.

© 2014 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: September 30, 2013
Revised Manuscript: December 5, 2013
Manuscript Accepted: December 9, 2013
Published: January 23, 2014

Citation
Jörg Burgmeier, Christian Waltermann, Günter Flachenecker, and Wolfgang Schade, "Point-by-point inscription of phase-shifted fiber Bragg gratings with electro-optic amplitude modulated femtosecond laser pulses," Opt. Lett. 39, 540-543 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-3-540

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