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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 16 — Jun. 1, 2009
  • pp: 3001–3007

Temporal thermal response of Type II–IR fiber Bragg gratings

Changrui Liao, Dong-ning Wang, Yuhua Li, Tong Sun, and Kenneth T. V. Grattan  »View Author Affiliations


Applied Optics, Vol. 48, Issue 16, pp. 3001-3007 (2009)
http://dx.doi.org/10.1364/AO.48.003001


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Abstract

We use the phase mask method to investigate both experimentally and theoretically the temporal thermal response of Type II–IR fiber Bragg gratings inscribed by a femtosecond laser. A fast testing system is developed to measure the thermal response time by means of periodic CO 2 laser irradiation, which creates a rapid temperature change environment. The temporal thermal response is found to be independent of the heat power and the heat direction, although the grating produced destroys the axial symmetry of the fiber. The measured values of the temporal thermal response are 230 ms for heating and 275 ms for cooling, which different from the simulation results obtained from a lumped system equation. The causes of such differences are investigated in detail.

© 2009 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: January 12, 2009
Revised Manuscript: April 16, 2009
Manuscript Accepted: April 26, 2009
Published: May 22, 2009

Citation
Changrui Liao, Dong-ning Wang, Yuhua Li, Tong Sun, and Kenneth T. V. Grattan, "Temporal thermal response of Type II-IR fiber Bragg gratings," Appl. Opt. 48, 3001-3007 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-16-3001

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