In:
Acta Physica Sinica, Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, Vol. 52, No. 12 ( 2003), p. 3087-
Abstract:
In this paper we have derived the Bragg equation of long-period fiber gratings by using interference theory. According to the color centers model and Kramers-Kronig principle, we have studied, theoretically and experimentally, the relationship between the resonant wavelength of the grating and its exposure. The result shows that the resonant wavelength of the long-period fiber grating changes with the UV exposure in the form of the sum of two decaying exponential functions an d the rate of change is controlled by the duty ratio of the mask. The resonant w avelength of the long-period fiber grating is inversely proportional to the duty ratio of the mask.
Type of Medium:
Online Resource
ISSN:
1000-3290
,
1000-3290
Language:
Unknown
Publisher:
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Publication Date:
2003
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