Wade Scott A, Brown William G A, Bal Harpreet K, Sidiroglou Fotios, Baxter Greg W, Collins Stephen F
CAOUS, Swinburne University of Technology, Hawthorn, VIC 3122, Australia.
J Opt Soc Am A Opt Image Sci Vis. 2012 Aug 1;29(8):1597-605. doi: 10.1364/JOSAA.29.001597.
Effects of fabrication conditions on the double-peak structure observed in fiber Bragg gratings at harmonics of the Bragg wavelength were investigated, showing that slight variations in the alignment of the phase mask can affect the grating spectra significantly. A single peak occurs only when the incident beam direction is perfectly normal with respect to the fiber.
研究了制作条件对光纤布拉格光栅在布拉格波长谐波处观测到的双峰结构的影响，结果表明相位掩膜对准的微小变化会对光栅光谱产生显著影响。只有当入射光束方向与光纤完全垂直时才会出现单峰。
