| 高阶模抑制型MILO慢波结构高频特性分析北大核心CSCD |
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| 引用本文： | 冀翔,王小林,周朴,陆启生,侯静,赵伊君. 高阶模抑制型MILO慢波结构高频特性分析北大核心CSCD[J]. 强激光与粒子束, 2013, 25(1): 119-122. DOI: 10.3788/HPLPB20132501.0119 |
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| 作者姓名： | 冀翔 王小林 周朴 陆启生 侯静 赵伊君 |
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| 作者单位： | 1.国防科学技术大学 光电科学与工程学院, 长沙 41 0073; |
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| 摘 要： | 理论分析了高阶模抑制型磁绝缘线振荡器(MILO)慢波结构,推导了其各分区电磁场分布.通过对场分布的进一步分析可以发现,角向开槽使得原始MILO结构中的两个简并的HEM11模式去简并,分裂成为极化方向与开槽方向垂直或平行的两个模式；通过改变慢波结构叶片间开槽角向位置相对关系,可以破坏高阶模式之间π模谐振关系,从而抑制高阶模式的起振,使器件稳定工作在基模.
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| 关 键 词： | 高功率微波 磁绝缘线振荡器 慢波结构 高频特性 HEM11模 基模 high power microwave magnetically insulated transmission line oscillator (MILO) slow wave structure high-frequency characteristics HEM11 mode fundamental mode |
| 收稿时间： | 2012-01-13 |
Supercontinuum source using Q-switched all-fiber nanosecond pulsed laser based on acousto-optical modulation |
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| Ji Xiang,Wang Xiaolin,Zhou Pu,Lu Qisheng,Hou Jing,Zhao Yijun. Supercontinuum source using Q-switched all-fiber nanosecond pulsed laser based on acousto-optical modulation[J]. High Power Laser and Particle Beams, 2013, 25(1): 119-122. DOI: 10.3788/HPLPB20132501.0119 |
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| Authors: | Ji Xiang Wang Xiaolin Zhou Pu Lu Qisheng Hou Jing Zhao Yijun |
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| Affiliation: | 1.College of Opto-electric Science and Engineering,National University of Defense Technology,Changsha 410073,China;2.63880 Army,Luoyang 471003,China |
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| Abstract: | The laser system based on Q-switched technique of acousto-optical modulation is all-fiber using passive fibers as media to generate supercontinuum, which can output different-width supercontinuum only by adjusting the pump power and repetition rate. With higher pump power, lower repetition rate, longer passive fiber, a wider supercontinuum is obtained. The supercontinuum range can be extended by splicing a passive fiber, and the supercontinuum width exceeds 700 nm when the passive fiber is 200 m long at 1 kHz modulation frequency, 1.0% duty and 4.68 W pump power. The all-fiber nanosecond pulsed laser has simple configuration with fully fiberized cavities without the need for free-space components, allowing for robust and compact system designs. It’s parameters can be easily adjusted by the acousto-optical modulator, which greatly extends the applications in industrial deployment. |
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| Keywords: | pulse fiber laser acousto-optical modulation supercontinuum duty ratio |
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