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基于倾斜光纤光栅的连续可调谐锁模激光器

Continuously Tunable Mode-Locked Fiber Laser Based on Tilted Fiber Grating

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摘要

以45°倾斜光纤光栅为起偏器,采用非线性偏振旋转技术,搭建了一台基于45°倾斜光纤光栅和锥型光纤的波长可调谐被动锁模光纤激光器。当输入抽运功率为454 mW时,可实现稳定的锁模脉冲输出,输出脉冲的中心波长为1568.8 nm,输出功率为2.31 mW,3 dB带宽为4.5 nm,脉宽为1.3 ps。锥型光纤作为可调节衰减器,改变了腔内的损耗,实现了波长从1568.8 nm到1560.24 nm的连续可调谐。该激光器可以应用在传感、光谱测量和通信等领域。

Abstract

In this study, we demonstrate a wavelength-tunable passively mode-locked fiber laser based on a 45° tilted fiber grating and a tapered fiber using the nonlinear polarization rotation technique. Further, stable mode-locked pulses with a central wavelength of 1568.8 nm and output power of 2.31 mW can be obtained when the input pump power is increased to 454 mW. Accordingly, the 3-dB spectral bandwidth and pulse width are 4.5 nm and 1.3 ps, respectively. Subsequently, the central wavelength of the pulse can be continuously tuned from 1568.8 nm to 1560.24 nm using the tapered fiber as an adjustable attenuator to modulate the cavity loss. The demonstrated fiber laser can be used in several fields, including sensing, spectroscopy, and telecommunications.

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中图分类号:TN248;TN253

DOI:10.3788/cjl201946.0508026

所属栏目:“超快激光非线性光学”专题

基金项目:国家自然科学基金(61605107,61505244)、国家青年千人项目、上海市青年东方学者(QD2015027)、天津大学光电信息技术教育部重点实验室开放基金(2018KFKT009)

收稿日期:2018-12-12

修改稿日期:2019-01-21

网络出版日期:2019-02-15

作者单位    点击查看

戴礼龙:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444
邹传杭:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444
黄千千:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444
黄梓楠:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444
凌远达:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444
邢志坤:华中科技大学光学与电子信息学院下一代互联网接入系统国家工程实验室, 湖北 武汉 430074
闫志君:华中科技大学光学与电子信息学院下一代互联网接入系统国家工程实验室, 湖北 武汉 430074
牟成博:上海大学上海先进通信与数据科学研究院,特种光纤与光接入网重点实验室,特种光纤与先进通信国际合作联合实验室, 上海 200444

联系人作者:牟成博(mouc1@shu.edu.cn)

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引用该论文

Dai Lilong,Zou Chuanhang,Huang Qianqian,Huang Zinan,Ling Yuanda,Xing Zhikun,Yan Zhijun,Mou Chengbo. Continuously Tunable Mode-Locked Fiber Laser Based on Tilted Fiber Grating[J]. Chinese Journal of Lasers, 2019, 46(5): 0508026

戴礼龙,邹传杭,黄千千,黄梓楠,凌远达,邢志坤,闫志君,牟成博. 基于倾斜光纤光栅的连续可调谐锁模激光器[J]. 中国激光, 2019, 46(5): 0508026

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