CN108963744A - 一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器 - Google Patents
一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器 Download PDFInfo
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Abstract
本发明涉及激光技术应用领域,尤其为一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器,由CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器、综合控制器组成。激光器利用CW光纤激光器和EOM调制器组成NP光纤种子源,触发低能量宽脉宽纳秒脉冲激光束;分别利用波形发生器、YLF+Glass固体放大器对脉冲激光束进行削波处理和多级能量放大;通过综合控制器协同控制CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器,激发宽脉宽高能量纳秒脉冲激光。整个激光器控制精度高、功能模块化、***集成化、通用性强,可用于不同深度粘接碳纤维复合材料和不同厚度涂层/薄膜等结构的界面结合力检测。
Description
技术领域
本发明涉及激光技术应用领域,具体为一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器。
背景技术
激光冲击波结合力检测技术(Laser bond Inspection,LBI),是指利用高功率密度纳秒脉冲辐照在材料表面,材料表面贴覆的吸收保护层(铝箔、黑胶带等)吸收激光能量后发生***性气化蒸发,形成高温高压等离子体,等离子体继续吸收激光能量膨胀,在水流的约束作用下形成向材料内部传播的高压冲击波;冲击波首先以压缩波形式传播,但在背面反射后转变为拉伸波,当拉伸波应力值超过材料界面结合力,即会在该处发生层裂现象,从而根据拉伸波应力值和层裂现象判断界面结合力是否满足设计标准。该技术既可以检测碳纤维复合材料层间的粘接力,还可以检测涂层/薄膜的界面结合力。
根据固体内部激光冲击波传播规律可知,不同脉宽激光诱导的冲击波反射后会在不同深度处形成最大拉伸应力,所以激光脉宽直接决定了激光冲击波结合力检测的界面处置。因此,为满足不同深度粘接复合材料和不同厚度涂层/薄膜结合力检测需求,需要利用不同脉宽脉冲激光进行检测。美国US 2005/0120803专利中提出采用传统本振级结构,通过调节灯泵浦功率实现激光脉宽可调,但该方法下激光脉宽可调范围很小,且能量耗损较大;因此,急需发明一种脉宽可调的高能纳秒脉冲激光器。
发明内容
本发明的目的在于提供一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器,该激光器控制精度高、功能模块化、***集成化,可实现激光脉宽、波形、能量可调,可用于不同深度粘接复合材料和不同厚度涂层/薄膜等结构的界面结合力检测,以解决上述背景技术中提出的问题。
为实现上述目的,本发明提供如下技术方案:
一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器,包括CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器和综合控制器,其特征在于:所述CW光纤激光器和EOM调制器共同组成NP光纤种子源,所述综合控制器通过控制总线分别与CW光纤激光器、EOM调制器、波形发生器和YLF+Glass固体放大器连接,具体操作如下:
1)利用CW光纤激光器和EOM调制器组成NP光纤种子源,可触发低能量宽脉宽纳秒脉冲激光束;
2)利用波形发生器对脉冲激光束进行削波处理,调整脉冲激光束的时间波形;
3)利用YLF+Glass固体放大器对脉冲激光束进行多级能量放大,调整脉冲激光束的能量大小;
4)通过激光器综合控制器对CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器进行协同控制,实现宽脉宽高能量纳秒脉冲激光束的输出。
本发明的特点如下:
1)激光器由CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器、综合控制器组成。
2)CW光纤激光器和EOM调制器组成NP光纤种子源,触发低能量宽脉宽纳秒脉冲激光束。
3)分别利用波形发生器、YLF+Glass固体放大器对脉冲激光束进行削波处理和多级能量放大。
4)激光器综合控制器协同控制CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器,激发宽脉宽高能量纳秒脉冲激光。
本发明具有以下有益效果:
本发明所述的一种用于激光冲击波结合力检测的可调脉宽高能激光器高度集成了CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器四大模块,并通过综合控制器进行协同控制,控制精度高、功能模块化、***集成化;可激发宽脉宽脉冲激光,并对波形、能量进行削波和放大,最终获得宽脉宽高能量纳秒脉冲激光,可实现激光脉宽、波形、能量可调,可用于不同深度粘接复合材料和不同厚度涂层/薄膜等结构的界面结合力检测。
附图说明
图1为本发明的激光器结构组成示意图。
1为CW光纤激光器、2为EOM调制器、3为波形发生器、4为YLF+Glass固体放大器、5为综合控制器、6为NP光纤种子源。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
请参阅图1,本发明提供一种技术方案:
一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器,包括CW光纤激光器1、EOM调制器2、波形发生器3、YLF+Glass固体放大器4和综合控制器5,CW光纤激光器1和EOM调制器2共同组成NP光纤种子源6,综合控制器5通过控制电路分别与CW光纤激光器1、EOM调制器2、波形发生器3和YLF+Glass固体放大器4连接,具体工作原理:
1)利用CW光纤激光器1和EOM调制器2组成NP光纤种子源6,可触发低能量宽脉宽纳秒脉冲激光束;
2)利用波形发生器3对脉冲激光束进行削波处理,调整脉冲激光束的时间波形;
3)利用YLF+Glass固体放大器4对脉冲激光束进行多级能量放大,调整脉冲激光束的能量大小;
4)通过激光器综合控制器5对CW光纤激光器1、EOM调制器2、波形发生器3、YLF+Glass固体放大器4进行协同控制,实现宽脉宽高能量纳秒脉冲激光束的输出。
特点优势:通过综合控制器将CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器四大模块集成化为一种宽脉宽高能量纳秒脉冲激光器,可激发宽脉宽低能量脉冲种子光,并对波形、能量进行削波和放大,最终获得宽脉宽高能量纳秒脉冲激光束。整个激光器控制精度高、功能模块化、***集成化、通用性强,可用于不同深度粘接复合材料和不同厚度涂层/薄膜等结构的界面结合力检测。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (1)
1.一种用于激光冲击波结合力检测的可变脉宽高能纳秒脉冲激光器,包括CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器和综合控制器,其特征在于:所述CW光纤激光器和EOM调制器共同组成NP光纤种子源,所述综合控制器通过控制总线分别与CW光纤激光器、EOM调制器、波形发生器和YLF+Glass固体放大器连接,具体工作原理如下:
1)利用CW光纤激光器和EOM调制器组成NP光纤种子源,可触发低能量宽脉宽纳秒脉冲激光束;
2)利用波形发生器对脉冲激光束进行削波处理,调整脉冲激光束的时间波形;
3)利用YLF+Glass固体放大器对脉冲激光束进行多级能量放大,调整脉冲激光束的能量大小;
4)通过激光器综合控制器对CW光纤激光器、EOM调制器、波形发生器、YLF+Glass固体放大器进行协同控制,实现宽脉宽高能量纳秒脉冲激光束的输出。
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CN112697698A (zh) * | 2020-11-27 | 2021-04-23 | 中国人民解放军空军工程大学 | 双光束协同的激光冲击波结合力检测装置及方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7099360B2 (en) * | 2003-02-03 | 2006-08-29 | Intel Corporation | Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit |
CN204256167U (zh) * | 2014-09-09 | 2015-04-08 | 航天恒星科技有限公司 | 一种基于脉宽调制技术的激光探测装置 |
CN206412629U (zh) * | 2017-01-22 | 2017-08-15 | 昆山华辰光电科技有限公司 | 脉宽可调的mopa光纤激光器 |
CN107069411A (zh) * | 2017-03-30 | 2017-08-18 | 武汉华日精密激光股份有限公司 | 高能量皮秒激光脉冲pod控制***及方法 |
CN107492781A (zh) * | 2017-09-30 | 2017-12-19 | 长春理工大学 | 1.7μm波段宽带皮秒脉冲多波长光纤光源 |
-
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- 2018-08-29 CN CN201810997038.9A patent/CN108963744A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7099360B2 (en) * | 2003-02-03 | 2006-08-29 | Intel Corporation | Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit |
CN204256167U (zh) * | 2014-09-09 | 2015-04-08 | 航天恒星科技有限公司 | 一种基于脉宽调制技术的激光探测装置 |
CN206412629U (zh) * | 2017-01-22 | 2017-08-15 | 昆山华辰光电科技有限公司 | 脉宽可调的mopa光纤激光器 |
CN107069411A (zh) * | 2017-03-30 | 2017-08-18 | 武汉华日精密激光股份有限公司 | 高能量皮秒激光脉冲pod控制***及方法 |
CN107492781A (zh) * | 2017-09-30 | 2017-12-19 | 长春理工大学 | 1.7μm波段宽带皮秒脉冲多波长光纤光源 |
Non-Patent Citations (1)
Title |
---|
林宏奂等: ""用于激光聚变驱动器的全光纤、全固化光脉冲产生***"", 《物理学报》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112697698A (zh) * | 2020-11-27 | 2021-04-23 | 中国人民解放军空军工程大学 | 双光束协同的激光冲击波结合力检测装置及方法 |
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Application publication date: 20181207 |