| 双波长可切换飞秒锁模光纤激光器 |
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| 引用本文： | 孙梦秋,汪徐德,杨思敏,梁勤妹. 双波长可切换飞秒锁模光纤激光器[J]. 激光与红外, 2021, 51(1): 46-51 |
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| 作者姓名： | 孙梦秋 汪徐德 杨思敏 梁勤妹 |
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| 作者单位： | 淮北师范大学物理与电子信息学院,安徽 淮北235000;淮北师范大学物理与电子信息学院,安徽 淮北235000;淮北师范大学物理与电子信息学院,安徽 淮北235000;淮北师范大学物理与电子信息学院,安徽 淮北235000 |
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| 基金项目： | 国家自然科学青年基金项目(No.11504121);安徽省高校优秀青年人才重点项目(No.gxyqZD2019034);安徽省教学研究项目(No.2019jyxm0213);淮北师范大学教学研究项目(No.JY18023);淮北师范大学研究生教育实践基地项目(No.2019jdxm06)资助。 |
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| 摘 要： | 报道了基于非线性偏振旋转技术的双波长可切换飞秒锁模光纤激光器.通过改变泵浦功率以及偏振控制器状态,激光器在波长1533.2 nm和1557.2 nm处可实现双波长锁模,两个波长的间隔为24 nm.在这两个波长之间还可实现可切换运作,对应的3 dB带宽分别为5.53 nm和4.69 nm,脉冲宽度分别为730 fs和89...
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| 关 键 词： | 光纤激光器 非线性偏振旋转 双波长可切换锁模 飞秒脉冲 |
Switchable dual-wavelength femtosecond mode-locked fiber laser |
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| SUN Meng-qiu,WANG Xu-de,YANG Si-min,LIANG Qin-mei. Switchable dual-wavelength femtosecond mode-locked fiber laser[J]. Laser & Infrared, 2021, 51(1): 46-51 |
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| Authors: | SUN Meng-qiu WANG Xu-de YANG Si-min LIANG Qin-mei |
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| Affiliation: | (School of Physics and Electronic Information,Huaibei Normal University,Huaibei 235000,China) |
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| Abstract: | Switchable dual-wavelength femtosecond mode-locked fiber laser based on nonlinear polarization rotation(NPR)is reported in this paper.By changing pump power and the state of the polarization controllers,the dual-wavelength mode locking is realized in the fiber laser,which has a wavelength separation of 24 nm with two central wavelengths of 1533.2 nm and 1557.2 nm.Switching operation can also be realized between the two wavelengths.The corresponding 3 dB spectral widths are 5.53 nm and 4.69 nm,respectively.The corresponding pulse durations are 730 ps and 890 ps,respectively.The switchable dual-wavelength mode locking could be attributed to comb filter effect induced by NPR.In addition,due to energy quantization effect,multi-pulse mode locking is also observed in the fiber laser.The results would give further insight towards understanding the dynamic characteristics of switchable dual-wavelength mode-locked fiber laser. |
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| Keywords: | fiber laser nonlinear polarization rotation switchable dual-wavelength mode-locking femtosecond pulse |
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