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

作　　者：Xinyang Liu Xiaowen Li Shengzhi Zhao Kejian Yan Lei Guo Tao Li Wenchao Qiao Ming Li Baitao Zhang Jingliang He Lihe Zheng Liangbi Su Jun Xu 刘新阳;李晓文;赵圣之;杨克建;郭磊;李涛;乔文超;李明;张百涛;何京良;郑丽和;苏良碧;徐军(School of Information Science and Engineering,and Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Qingdao 266237,China;Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education),Department of Applied Physics,Beihang University,Beijing 100191,China;Shenzhen Research Institute of Shandong University,Shenzhen 518057,China;State Key Laboratory of Crystal Materials,Institute of Crystal Materials,Shandong University,Jinan 250100,China;Key Laboratory of Transparent and Opto-Functional Inorganic Materials,Artificial Crystal Research Center,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China;School of Physics Science and Engineering,Institute for Advanced Study,Tongji University,Shanghai 200092,China)

机构地区：[1]School of Information Science and Engineering,and Shandong Provincial Key Laboratory of Laser Technology and Application,Shandong University,Qingdao 266237,China [2]Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education),Department of Applied Physics,Beihang University,Beijing 100191,China [3]Shenzhen Research Institute of Shandong University,Shenzhen 518057,China [4]State Key Laboratory of Crystal Materials,Institute of Crystal Materials,Shandong University,Jinan 250100,China [5]Key Laboratory of Transparent and Opto-Functional Inorganic Materials,Artificial Crystal Research Center,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China [6]School of Physics Science and Engineering,Institute for Advanced Study,Tongji University,Shanghai 200092,China

出　　处：《Chinese Optics Letters》2019年第9期60-63,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)(Nos.61475088,61378022,61605100,and 61422511);the Key Research and Development Program of Shandong Province(No.2018GGX101006);the Shenzhen Science and Technology Research and Development Funds(No.JCYJ20180305163932273);the Young Scholars Program of Shandong University(No.2015WLJH38)

摘　　要：A dual-wavelength synchronously mode-locked homogeneously broadened bulk laser operating at 1985.6 and1989 nm is presented for the first time, to the best of our knowledge, which delivers a maximum output power of 166 m W and a repetition rate of 85 MHz. The pulse duration was measured to be 16.8 ps by assuming a sech2 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 about0.26 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.A dual-wavelength synchronously mode-locked homogeneously broadened bulk laser operating at 1985.6 and1989 nm is presented for the first time, to the best of our knowledge, which delivers a maximum output power of 166 m W and a repetition rate of 85 MHz. The pulse duration was measured to be 16.8 ps by assuming a sech2 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 about0.26 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.

关 键 词：DUAL-WAVELENGTH synchronously MODE-LOCKED Tm-doped BULK laser TERAHERTZ FREQUENCY 

分 类 号：O4[理学—物理]