The coupling mode theory and Runge-Kuta method can be employed to exactly simulate the spectrum of FBG in such fields, but the convergence speed is slow.
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美
- 采用耦合模理论和龙格-库塔的方法可以准确地分析非均匀应变场中的FBG光谱特性，其缺点是收敛速度慢；
