| Mechanism and elimination of spectrum filtering in a high power mode-locked fibre laser with a free output coupler |
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| 作者姓名： | 张玉颖 张驰 胡明列 王思佳 宋有建 柴路 王清月 |
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| 作者单位： | Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China;Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China |
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| 基金项目： | Project supported by the National
Basic Research Program of China (Grant Nos.~2006CB806002 and
2010CB327604), the National High Technology Research and Development
Program of China (Grant No.~2007AA03Z447), the National Natural
Science Foundation of China (Grant Nos.~60838004 and 60678012), the
Foundation for Key Program of Ministry of Education, China (Grant
No.~108032), the Foundation for the Author of National Excellent
Doctoral Dissertation of China (Grant No.~2007B34), and the Program
for New Century Excellent Talents in University of China (Grant
No.~NCET-07-0597). |
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| 摘 要： | The filtering mechanism of a free output coupler mode-locked laser based on large-mode-area photonic-crystal fibre is analysed. A filtering-soliton mode-locked laser with 495 fs pulse width and 21 nJ pulse energy is achieved. Another novel cavity configuration is established to eliminate the filtering effect. Pulses, each 457 fs in width and 16.5 nJ in energy, are obtained in a soliton-like regime. Pulses, each 387 fs in width and 15.8 nJ in energy, are also generated in a stretched pulse regime and could be dechirped to 119 fs externally to the cavity.
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| 关 键 词： | femtosecond laser mode-locked laser fibre laser large-mode-area photonic-crystal fibre |
| 收稿时间： | 2009-06-11 |
Mechanism and elimination of spectrum filtering in a high power mode-locked fibre laser witha free output coupler |
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| Zhang Yu-Ying,Zhang Chi,Hu Ming-Lie,Wang Si-Ji,Song You-Jian,Chai Lu and Wang Qing-Yue.Mechanism and elimination of spectrum filtering in a high power mode-locked fibre laser with a free output coupler[J].Chinese Physics B,2010,19(1):14212-014212. |
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| Authors: | Zhang Yu-Ying Zhang Chi Hu Ming-Lie Wang Si-Ji Song You-Jian Chai Lu and Wang Qing-Yue |
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| Institution: | Ultrafast Laser Lab, School of Precision Instruments and Optoelectronics Engineering, Key Laboratory of Optoelectronic Information Technical Science, Tianjin University, Tianjin 300072, China |
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| Abstract: | The filtering mechanism of a free output coupler
mode-locked laser based on large-mode-area photonic-crystal fibre is
analysed. A filtering-soliton mode-locked laser with 495~fs pulse
width and 21 nJ pulse energy is achieved. Another novel cavity
configuration is established to eliminate the filtering effect.
Pulses, each 457~fs in width and 16.5 nJ in energy, are
obtained in a soliton-like regime. Pulses, each 387~fs in
width and 15.8 nJ in energy, are also generated in a stretched pulse
regime and could be dechirped to 119~fs externally to the cavity. |
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| Keywords: | femtosecond laser mode-locked laser fibre laser large-mode-area photonic-crystal fibre |
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