Annealing and temperature coefficient study of type IA fibre Bragg gratings inscribed under strain and no strain - Implications to optical fibre component reliability

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Kalli, Kyriacos ; Simpson, George ; Dobb, Helen ; Komodromos, Michael ; Webb, David ; Bennion, Ian (2006)
  • Publisher: SPIE
  • Subject:
    arxiv: Physics::Optics

The annealing properties of Type IA Bragg gratings are investigated and compared with Type I and Type IIA Bragg gratings. The transmission properties (mean and modulated wavelength components) of gratings held at predetermined temperatures are recorded from which decay characteristics are inferred. Our data show critical results concerning the high temperature stability of Type IA gratings, as they undergo a drastic initial decay at 100°C, with a consequent mean index change that is severely reduced at this temperature However, the modulated index change of IA gratings remains stable at lower annealing temperatures of 80°C, and the mean index change decays at a comparable rate to Type I gratings at 80°C. Extending this work to include the thermal decay of Type IA gratings inscribed under strain shows that the application of strain quite dramatically transforms the temperature characteristics of the Type IA grating, modifying the temperature coefficient and annealing curves, with the grating showing a remarkable improvement in high temperature stability, leading to a robust grating that can survive temperatures exceeding 180°C. Under conditions of inscription under strain it is found that the temperature coefficient increases, but is maintained at a value considerably different to the Type I grating. Therefore, the combination of Type I and IA (strained) gratings make it possible to decouple temperature and strain over larger temperature excursions.
  • References (17)
    17 references, page 1 of 2

    [1] A.G. Simpson, K. Kalli, K. Zhou, L. Zhang and I. Bennion, “Formation of type IA fibre Bragg gratings in germanosilicate optical fibre,” Electronics Letters, Vol. 40, p 163-164, 2004.

    [2] A.G. Simpson, K. Kalli, L. Zhang, K. Zhou and I. Bennion, “Abnormal photosensitivity effects and the formation of type IA FBGs,” BGPP, Monterey, California, MD31, 2003.

    [3] A.G. Simpson, K. Kalli, K. Zhou, L. Zhang and I. Bennion, “An idealised method for the fabrication of temperature invariant IA-I strain sensors,” postdeadline session, OFS16 Nara, Japan, PD4, 2003.

    [4] P. Lemaire, “Reliability of optical fibres exposed to hydrogen: prediction of long-term loss increases,” Optical Engineering, Vol. 30, p 780-781, 1991.

    [5] D. L. Williams and R. P. Smith, “Accelerated lifetime tests on UV written intracore gratings in boron germania codoped silica fibre,” Electronics Letters, vol. 31, pp. 2120-2121, 1995.

    [6] S. Kannan, J. Z. Y. Guo, and P. J. Lemaire, “Thermal stability analysis of UV-induced fibre Bragg gratings,” Journal of Lightwave Technology, Vol. 15, pp. 1478-1483, 1997.

    [7] S. Ishikawa, A. Inoue, M. Harumoto, T. Enomoto, and H. Kanamori, “Adequate aging condition for fibre Bragg grating based on simple power low model,” presented at Optical Fibre Sensors (OFS1998), 1998.

    [8] H. Patrick, S. L. Gilbert, A. Lidgard, and M. D. Gallagher, “Annealing of Bragg gratings in hydrogen-loaded opticalfibre,” Journal of Applied Physics, Vol. 78, pp. 2940-2945, 1995.

    [9] M. Aslund and J. Canning, “Annealing properties of gratings written into UV-presensitized hydrogen-outdiffused optical fibre,” Optics Letters, Vol. 25, pp. 692-694, 2000.

    [10] P. Niay, P. Bernage, S. Legoubin, M. Douay, W. X. Xie, J. F. Bayon, T. Georges, M. Monerie, and B. Poumellec, “Behavior of Spectral Transmissions of Bragg Gratings Written in Germania-Doped Fibres - Writing and Erasing Experiments Using Pulsed or Cw Uv Exposure,” Optics Communications, Vol. 113, pp. 176 -192, 1994.

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