可调脉冲宽度的调Q掺铥双包层光纤激光器

张灵聪; 杜戈果; 赵俊清; 郭春雨; 阮双琛

可调脉冲宽度的调Q掺铥双包层光纤激光器

张灵聪^1,2,3, ,,
杜戈果^1,2,3, ,,
赵俊清^1,2,3,
郭春雨^1,2,3,
阮双琛^1,2,3

1.
深圳市激光工程重点实验室,广东深圳 518060;
2.
先进光学精密制造技术广东普通高校重点实验室（深圳大学),广东深圳 518060;
3.
深圳大学电子科学与技术学院,广东深圳 518060

详细信息

通讯作者:
张灵聪（1981-），男，广东揭西人，硕士研究生，主要从事光纤激光器研究工作。 Email: 147659407@qq.com 论文联系人：杜戈果Email:dugeguo@szu.edu.cn

张灵聪（1981-），男，广东揭西人，硕士研究生，主要从事光纤激光器研究工作。 Email: 147659407@qq.com 论文联系人：杜戈果Email:dugeguo@szu.edu.cn

中图分类号: TN248
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出版历程
- 刊出日期: 2013-03-15

Adjustable pulse width thulium-doped Q-switched double-clad fiber laser

ZHANG Ling-cong^{1,2,3
, ,},
DU Ge-guo^{1,2,3
, ,},
ZHAO Jun-qing^1,2,3,
GUO Chun-yu^1,2,3,
RUAN Shuang-chen^1,2,3

1.
Shenzhen Key Laboratory of Laser Engineering,Shenzhen 518060,China;
2.
Key Laboratory of Advanced Optical Precision Manufacturing Technology of Guangdong College,Shenzhen518060,China;
3.
College of Electronic Science and Technology,Shenzhen University,Shenzhen 518060,China

摘要

摘要: 在激光器输出平均功率一定的情况下，峰值功率主要取决于调制频率和脉冲宽度。这使得脉冲宽度的调节具有一定的实际应用价值。对调Q掺铥双包层光纤激光器进行研究，首先确定了激光器的最佳输出透过率，在65%最佳透过率时，得到2 m激光的输出功率3.9 W，斜率效率为31%。外接一个信号发生器，信号门宽从12 s变化到18 s，并测量了调制频率分别在30 kHz、40 kHz和50 kHz时输出脉冲宽度的变化情况，得到了555.6 W的最高峰值功率，实现了脉冲宽度从163.4 ns到207.9 ns的变化。实验情况证实了用外接信号发生器能有效控制激光器的输出脉冲宽度。
- 铥 /
- 双包层光纤 /
- 可调脉冲宽度 /
- 声光调Q /
- 光纤激光器
Abstract: The peak power is determined by the modulation frequency and pulse width with the average output power of laser settled, thus the tunability of pulse width has its value in practice.The thulium-doped Q-switched double-clad fiber laser was investigated. With optimum transmissivity of 65% the output power of 2 m laser was 3.9 W and the corresponding slope efficiency was 31%. The signal gate width was adjusted from 12 s to 18 s with the external signal generator. Pulse width was measured at modulation frequency of 30 kHz, 40 kHz and 50 kHz, and maximum peak power of 555.6 W was attained. The pulse width varied from 163.4 ns to 207.9 ns. The experiment result shows pulse width of laser can be effectively controlled by using external signal generator.
- thulium /
- double-clad fiber /
- tunable pulse width /
- acousto-optic Q-switch /
- fiber laser

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参考文献(1)

［1］HANNA D C, JAUNCEY I M, PERCIVAL R M, et al. Continuous-wave oscillation of a monomode thulium-doped fibre laser［J］. Electronics Letters, 1988, 24(19): 1222-1223.
［2］胡辉，杜戈果，郭春雨，等. 国产掺铥双包层光纤光谱特性研究［J］. 应用光学, 2010, 31(3): 478-481.
HU Hui, DU Ge-guo, GUO Chun-yu, et al. Spectral characteristics of domestic Tm-doped double cladding fiber［J］. Journal of Applied Optics, 2010, 31(3): 478-481. (in Chinese with an English abstract)
［3］DU Ge-guo, LI Da-jun, ZHANG Min, et al. LD-pumped 6W cw Tm3+doped silica dou-ble-cladding fibre laser［J］. Chinese Physics Letters, 2008, 25(3): 957-959.
［4］WU Jian-feng, YAO Zhi-dong, ZONG Jie, et al. Highly efficient high-power thulium-doped germanate glass fiber laser［J］. Optics Letters, 2007, 32(6): 638-640.
［5］ZHANG Xin-lu, WANG Yue-zhu, JU You-lun. LD-pumped actively Q-switched Tm, Ho:YLF laser at room temperature［J］. Optics & Laser Technology, 2007, 39(1): 78-81.
［6］杨昆，任秋实，魏石刚，等. 2 μm铥(Tm)激光器在生物医学中的应用［J］. 激光与光电子学进展, 2005, 42(9): 52-56.
YANG Kun, REN Qiu-shi, WEI Shi-gang, et al. Application of 2 μm Tm laser on biomedi-cine［J］. Laser & Optoelectronics Progress, 2005, 42(9): 52-56. (in Chinese with an English abstract)
［7］赵俊清，杜戈果，张灵聪，等. 双端泵浦掺铥光纤激光器的实验研究［J］. 应用激光, 2011, 31(4): 332-337.
ZHAO Jun-qin, DU Ge-guo, ZHANG Ling-cong, et al. Experimental studies on double-end pumped thulium doped fiber laser［J］. Applied Laser, 2011, 31(4): 332-337. (in Chinese with an English abstract)
［8］ASHRAF F, EL-SHERIF, KING T A. Analysis and optimization of Q-switched operation of a Tm3+doped silica fiber laser operating at 2 μm［J］. IEEE Journal of Quantum Electronics, 2003, 39(6): 759-765.
［9］CREEDEN D, KETTERIDGE P A, BUDNI P A, et al. Mid-infrared ZnGeP2 parametric oscil-lator directly pumped by a pulsed 2 μm Tm-doped fiber laser［J］. Optics Letters, 2008, 33(4): 315-317.
［10］BARNES N, CLARKSON W A, HANNA D C, et al. Diode pumped, tunable, Q-switched Tm:glass fiber laser［M］. Washington DC: Advanced Solid State Lasers, OSA Technical Digest, 2001: 45-47.
［11］QAMAR F Z, KING T A. Passive Q-switching of the Tm silica fibre laser near 2 μm by Cr2+∶ZnSe saturable absorber crystal［J］. Optics Communications, 2005, 248(4-6): 501-508.
［12］杜戈果，张灵聪，赵俊清，等. 主动调Q掺铥双包层光纤激光器［J］. 深圳大学学报：理工版, 2012, 29(5): 417-420.
DU Ge-guo, ZHANG Ling-cong, ZHAO Jun-qing, et al. Actively Q-switched thulium-doped double-clad fiber laser［J］. Journal of Shenzhen University: Science and Engineering, 2012, 29(5): 417-420. (in Chinese with an English abstract)

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