Acta Optica Sinica, Volume. 22, Issue 9, 1088(2002)
Effect of Change of Ambient Refractive Index on Characteristics of Long-Period Fiber Gratings
A long-period fiber grating is simplified as a three-layer step-index waveguide. By using the concepts of scalar approximation and leaky-mode and the couple-mode theory, the influence of the change of ambient refractive index upon the LPG′s characteristics such as resonance wavelength and peak loss in detail is analyzed. Some useful conclusions are obtained which agree with the experimental results very well.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Effect of Change of Ambient Refractive Index on Characteristics of Long-Period Fiber Gratings[J]. Acta Optica Sinica, 2002, 22(9): 1088