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Femtosecond fiber laser at 780 nm for two-photon autofluorescence imaging

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Abstract

We present an Er-doped fiber (Er:fiber)-based femtosecond laser at 780?nm with 256?MHz repetition rate, 191?fs pulse duration, and over 1?W average power. Apart from the careful third-order dispersion management, we introduce moderate self-phase modulation to broaden the output spectrum of the Er:fiber amplifier and achieve 193 fs pulse duration and 2.43?W average power. Over 40% frequency doubling efficiency is obtained by a periodically poled lithium niobate crystal. Delivering through a hollow-core photonic bandgap fiber, this robust laser becomes an ideal and convenient light source for two-photon autofluorescence imaging.

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DOI:10.3788/COL201917.071405

所属栏目:Lasers and laser optics

基金项目:This work was supported in part by the National Natural Science Foundation of China (Nos.?61475008 and 31327901).

收稿日期:2018-11-30

录用日期:2019-04-12

网络出版日期:2019-07-09

作者单位    点击查看

Wan Yang:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Danlei Wu:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, ChinaKey Laboratory of Precision Opto-Mechatronics Technology, Ministry of Education, School of Instrumentation Science & Optoelectronics Engineering, Beihang University, Beijing 100191, China
Runlong Wu:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Guanyu Liu:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Bingying Chen:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Lishuang Feng:Key Laboratory of Precision Opto-Mechatronics Technology, Ministry of Education, School of Instrumentation Science & Optoelectronics Engineering, Beihang University, Beijing 100191, China
Zhigang Zhang:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China
Aimin Wang:State Key Laboratory of Advanced Optical Communication System and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China

联系人作者:Aimin Wang(wangaimin@pku.edu.cn)

备注:This work was supported in part by the National Natural Science Foundation of China (Nos.?61475008 and 31327901).

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引用该论文

Wan Yang, Danlei Wu, Runlong Wu, Guanyu Liu, Bingying Chen, Lishuang Feng, Zhigang Zhang, Aimin Wang, "Femtosecond fiber laser at 780 nm for two-photon autofluorescence imaging," Chinese Optics Letters 17(7), 071405 (2019)

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