摘要
利用倾斜光纤光栅的结构特点和光栅中光波的耦合模方程 ,分析研究了倾斜光纤光栅的反射特性。模拟分析结果表明 ,倾斜使光栅反射谱的中心波长向长波长移动 ,倾角增大时 ,反射谱的波纹增大 ,带宽减小 ,同时时延波纹减小 ,色散增大。
The reflection property of the fiber tilted-grating is discussed by the structure and coupled-wave equation of the fiber tilted-grating. The simulation results shows that the center wavelength of reflection spectrum of the fiber grating is moved to long-wavelength side as tilted. As tilt angle increase, the ripple of reflection spectrum increases, bandwidth decreases, ripple of delay decreases and dispersion increases.
出处
《光电子技术》
CAS
2005年第1期25-27,共3页
Optoelectronic Technology
关键词
光纤光栅
倾斜
反射谱
色散特性
fiber grating
tilt
reflection spectrum
dispersion property
