| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Passively Mode-Locked Femtosecond Laser with Disordered Crystal Nd:CGA as Gain Medium |
| Kun-Na He1,2, Jia-Xing Liu2, Wen-Long Tian2, Zhong-Wei Shen3, Xiao-Dong Xu4, Zhao-Hua Wang2, De-Hua Li2, Jun Xu5, Ju-Qing Di6, Chang-Tai Xia6, Zhi-Yi Wei2** |
1College of Science, China Agricultural University, Beijing 100083
2Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
3Department of Engineering Physics, Tsinghua University, Beijing 100084
4Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116
5School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai 200092
6Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
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| Cite this article: |
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Kun-Na He, Jia-Xing Liu, Wen-Long Tian et al 2016 Chin. Phys. Lett. 33 094204 |
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Abstract We present a laser-diode-pumped passively mode-locked femtosecond disordered crystal laser by using Nd:CaGdAlO$_{4}$ (Nd:CGA) as the gain medium. With a pair of SF6 prisms to control the dispersion compensation, laser pulses as short as 850 fs at 1079 nm are obtained with a repetition rate of 124.6 MHz. The measured threshold pump power is 1.45 W. A maximum average output power of 122 mW is obtained under the pump power of 5.9 W. These results show that Nd:CGA could be a promising laser medium for generating femtosecond ultrashort pulse at about 1 μm.
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Received: 20 June 2016
Published: 30 September 2016
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| PACS: |
42.55.Xi
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(Diode-pumped lasers)
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42.60.Fc
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(Modulation, tuning, and mode locking)
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