基于Sagnac环形滤波器的多波长掺铥光纤激光器

发布时间：2018-01-11 13:36

本文关键词：基于Sagnac环形滤波器的多波长掺铥光纤激光器　出处：《纳米技术与精密工程》2016年03期 　论文类型：期刊论文

【摘要】：为了实现2μm波段多波长激光输出,提出并设计了一种基于Sagnac环形滤波结构的多波长掺铥光纤激光器.激光器由波长793 nm的泵浦源、波分复用器、光纤耦合器、保偏光纤、掺铥光纤以及偏振控制器构成,其中Sagnac环形滤波器以及光纤环形镜作为激光器的反射端.实验中,激光器工作阈值为77.5 m W,通过调节偏振控制器,实现了稳定的单波长激光输出.波长为1 852.8 nm的单波长激光输出时,在50 min监测时间内波长最大漂移为0.1 nm,功率最大漂移为0.252 d B,激光3 d B线宽和信噪比分别为0.3 nm和35.7 d B.通过调节偏振控制器,在1 850~1 900 nm光谱范围内实现了1~4波长的激光输出.
[Abstract]:In order to realize the output of 2 渭 m wavelength multi-wavelength laser, a multi-wavelength thulium doped fiber laser based on Sagnac ring filter structure is proposed and designed. The laser is pumped by a wavelength of 793nm. Wavelength division multiplexer, fiber coupler, polarization maintaining fiber, thulium doped fiber and polarization controller, Sagnac ring filter and fiber ring mirror are used as the reflectors of the laser. The operating threshold of the laser is 77.5 MW. By adjusting the polarization controller, a stable single wavelength laser output is achieved, and the single wavelength laser output at 1 852.8 nm is achieved. The maximum wavelength drift was 0.1 nm and the maximum power shift was 0.252 dB during 50 min monitoring time. The laser 3dB line width and SNR are 0.3 nm and 35.7 dB, respectively. The polarization controller is adjusted. The laser output of 1 ~ 4 wavelength has been realized in the spectral range of 1 850 ~ 1 900 nm.
【作者单位】：北京信息科技大学光电信息与仪器北京市工程研究中心;北京信息科技大学光电测试技术北京市重点实验室;
【基金】：教育部“长江学者和创新团队”发展计划资助项目(IRT1212) 北京市重大科技计划资助项目(PXM2013_014224_000077,PXM2012_014224_000019) 光电信息与仪器北京市工程研究中心开放课题资助项目(GD20130006)
【分类号】：TN248
【正文快照】： 光纤激光器是当今光电子技术研究领域中最前沿的课题之一,和其他激光器相比,光纤激光器具有输出功率高、信噪比高和使用寿命长等优势,广泛应用于通信、工业、医疗和军事等领域[1-2].掺铥光纤激光器(Tm-doped fiber laser,TDFL)能够产生2μm波段的激光,2μm波段的激光对人眼是

【相似文献】