基于悬臂梁啁啾调谐的光纤光栅滤波器  

Chirp rate-tunable fiber Bragg grating filters based on a cantilever beam

作　　者：董新永[1] 赵春柳[1] 

机构地区：[1]中国计量学院光电子技术研究所,浙江杭州310018

出　　处：《光电子．激光》2010年第10期1455-1458,共4页Journal of Optoelectronics·Laser

基　　金：国家"973"计划资助项目(2010CB327800);国家自然科学基金资助项目(60807021);浙江省自然基金资助项目(R1080087)

摘　　要：提出并发展了一种基于悬臂梁结构的啁啾光纤Bragg光栅(CFBG)啁啾调谐方案,获得了一系列性能优异的可调谐CFBG滤波器,包括调谐范围达到36 nm(1.8～37.8 nm)的带宽可变反射滤波器、色散在178～2 100ps/nm范围内可调的色散补偿器、基于取样CFBG或重叠写入CFBG的信道间隔可调谐滤波器等。这些FBG滤波器不但能维持较高的反射率,还能保持中心波长基本不变。A novel method to tune the chirp rate of chirped fiber Bragg gratings（CFBGs） is proposed by using a specially-designed cantilever beam.With this method,a series of tunable optical fiber filters are developed,including the bandwidth-tunable reflective CFBG filter with the tuning range of 36 nm（1.837.8 nm）,the tunable CFBG chromatic dispersion compensator with variable dispersion from 178 to 2 100 ps/nm,and the channel-spacing-tunable filters using a sampled-CFBG or a superimposed-CFBG.The high reflectivity can be maintained and the center wavelengths are nearly fixed during the tuning process for the above filters.

关 键 词：光纤Bragg光栅(FBG) 滤波器 色散调谐 啁啾率 

分 类 号：TN25[电子电信—物理电子学]