Metal coated long periodfiber gratings (LPFG) can be used to change the resonance wavelength.
金属包层长周期光纤光栅可用于对谐振波长的调谐。
2
Based on the coupled-mode theory, the transfer-matrix method is used to calculate the transmission spectra of phase-shifted long-periodfiber gratings (LPFG).
应用耦合模理论和传输矩阵法计算模拟了长周期光纤光栅的透射谱,并对其进行了切趾优化。
3
The transmission spectrum of a novel long periodfiber grating written with the high frequency CO2 laser pulses is theoretical analyzed.