摘要
从理论上分析了利用变截面(等强度)弹性梁实现光纤光栅波长线性、无啁啾调谐的基本原理,给出了实现无啁啾波长调谐的弹性梁截面满足条件及其设计方案,并讨论了矩形等截面和变截面悬臂梁调谐方案的特点·理论分析与实验结果均表明,通过对变截面梁侧向施加载荷,可以实现光纤光栅中心波长的线性无啁啾调谐,且系统结构简单、易于设计·
The basic linear tuning principle of fiber grating wavelength without chirp effect using variational section beam with uniform intensity is theoretically analyzed in this paper. Three kinds of basic design scheme of variational section beam and the condition that the elastic beam section as tuning device of the wavelength of fiber grating without chirp effect must satisfy are presented. The characteristics of the tuning technologies using cantilever beam based on identical section and variational section are discussed. It is shown that by bring lateral load to bear on simple beam and cantilever beam a linear tuning of fiber gating wavelength without chirp effect can be realized, design. and the setup is simple in structure and easy to
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第6期867-872,共6页
Acta Photonica Sinica
关键词
光纤光栅
调谐技术
弹性梁
啁啾
Fiber grating
Tuning technologies, Elastic beam
Chirp effect
