1.7μm波段全光纤掺铥宽带光源实验研究  

Experimental Research of 1.7μm Band All Fiber Thulium-doped Broadband Light Source

作　　者：张岩[1,2] 刘显著[1,3] 张鹏[1,3] 王天枢[1,2] 

机构地区：[1]长春理工大学空间光电技术国家与地方联合工程研究中心,长春130022 [2]长春理工大学理学院,长春130022 [3]长春理工大学光电工程学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2016年第5期5-8,19,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家自然基金(60907020);吉林省自然科学基金(20150101044JC);吉林省教育厅基金(吉教科字2015-77)

摘　　要：设计并实验实现了一种结构简单的1.7μm波段全光纤宽带光源。采用传统的线型腔结构,利用1565nm高功率半导体激光器泵浦一段单模掺铥光纤,获得了中心波长为1833nm的自发辐射光谱。由于色散补偿光纤在大于1.7μm波段有较大损耗,在腔内接入该光纤使自发辐射光谱的中心波长移动到1.7μm波段。其中,泵浦源由1565nm半导体激光器和最高输出功率33d Bm的铒镱共掺放大器组成。通过优化色散补偿光纤和掺铥光纤的长度,获得了宽带光源,其中心波长在1744nm,5d B谱宽87nm。为1.7μm光纤光源设计及研制提供参考。A 1.7μm band simple structure all-fiber broadband light source is designed and achieved. The light source use traditional linear cavity,a segment of single-mode thulium-doped fiber pumped by a 1565 nm high-power semiconductor laser to achieve a spontaneous emission spectrum with 1833 nm central wavelength. The dispersion compensating fiber has large loss in 1.7μm band and it can make central wavelength of spontaneous emission spectrum shift to 1.7μm band. The high-power semiconductor laser is consisting of 1565 nm seed laser source and an erbium ytterbium co-doped fiber amplifier with 33 d Bm maximum output power. By optimizing the different lengths of dispersion compensating fiber and thulium-doped fiber, all-optical broadband spontaneous emission spectrum can be achieved, and the central wavelength is 1744 nm,10d B spectrum width is 87 nm. Provide a reference for the design and development of1.7μm fiber source.

关 键 词：宽带光源 增益谱 1.7μm波段 掺铥光纤 色散补偿光纤 

分 类 号：TN248[电子电信—物理电子学]