Dual-wavelength synchronously mode-locked Tm-doped bulk laser with terahertz frequency beating

被引：6
|
作者：
Liu, Xinyang [1 ,2 ]
Li, Xiaowen [3 ]
Zhao, Shengzhi [1 ,2 ]
Yang, Kejian [4 ,5 ]
Guo, Lei [1 ,2 ,4 ]
Li, Tao [1 ,2 ]
Qiao, Wenchao [1 ,2 ]
Li, Ming [1 ,2 ]
Zhang, Baitao [5 ]
He, Jingliang [5 ]
Zheng, Lihe [6 ]
Su, Liangbi [6 ]
Xu, Jun [7 ]
机构：
[1] Shandong Univ, Sch Informat Sci & Engn, Qingdao 266237, Shandong, Peoples R China
[2] Shandong Univ, Shandong Prov Key Lab Laser Technol & Applicat, Qingdao 266237, Shandong, Peoples R China
[3] Beihang Univ, Dept Appl Phys, Minist Educ, Key Lab Micronano Measurement Manipulat & Phys, Beijing 100191, Peoples R China
[4] Shandong Univ, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
[5] Shandong Univ, Inst Crystal Mat, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
[6] Chinese Acad Sci, Shanghai Inst Ceram, Artificial Crystal Res Ctr, Key Lab Transparent & Optofunct Inorgan Mat, Shanghai 201899, Peoples R China
[7] Tongji Univ, Inst Adv Study, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2019年 / 17卷 / 09期
基金：
中国国家自然科学基金;
关键词：
TMYAP LASER; MU-M; OPERATION; FEMTOSECOND; GENERATION; PULSES; GROWTH;
D O I：
10.3788/COL201917.091401
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A dual-wavelength synchronously mode-locked homogeneously broadened bulk laser operating at 1985.6 and 1989 nm is presented for the first time, to the best of our knowledge, which delivers a maximum output power of 166 mW and a repetition rate of 85 MHz. The pulse duration was measured to be 16.8 ps by assuming a sech(2) pulse shape. The recorded autocorrelation trace showed frequency beating signals with an interval of 3.8 ps and a full width at half-maximum duration of 2 ps, corresponding to an ultrahigh beating frequency of about 0.26 THz, which agrees well with the frequency difference of the emitted two spectral peaks. The results indicated that such a kind of dual-wavelength mode-locked Tm:YAlO3 laser could be potentially used for generating terahertz radiations.
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页数：4
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