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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 5 — Mar. 1, 2013
  • pp: 676–678

In situ FBG inscription during fiber laser operation

Martin Leich, Julia Fiebrandt, Sylvia Jetschke, Manfred Rothhardt, and Matthias Jäger  »View Author Affiliations


Optics Letters, Vol. 38, Issue 5, pp. 676-678 (2013)
http://dx.doi.org/10.1364/OL.38.000676


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Abstract

We demonstrate the inscription of a 266 nm UV femtosecond pulse-induced fiber Bragg grating (FBG) in an Yb-doped fiber during optical pumping at 976 nm and the initiation of lasing with increasing grating reflectivity. Output spectra show the emission of the pumped fiber changing from the broad-ranged amplified spontaneous emission in the nonlasing case to the narrow-range laser operation due to the enhancement of FBG reflectivity during inscription. The proposed technique enables the direct characterization and control of FBG performance in fiber lasers. After FBG fabrication, we investigate the spectral characteristics of the fiber laser for different laser powers and study the influence of a thermal treatment of the FBG.

© 2013 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 30, 2012
Manuscript Accepted: January 20, 2013
Published: February 25, 2013

Citation
Martin Leich, Julia Fiebrandt, Sylvia Jetschke, Manfred Rothhardt, and Matthias Jäger, "In situ FBG inscription during fiber laser operation," Opt. Lett. 38, 676-678 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-5-676

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