Gain broadening and mode-locking in overcoupled second harmonic Q-switched microsecond pulses

Gain broadening and mode-locking in overcoupled second harmonic Q-switched microsecond pulses
复制标题

过耦合二次谐波调Q微秒脉冲中的增益展宽和锁模

DOI:
10.1088/2040-8978/16/10/105209
复制
发表时间:
2014
期刊:
影响因子:
2.1
通讯作者:
R. Brinkmann
R. Brinkmann
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
I. Rohde;R. Brinkmann

文献摘要

参考文献

相似文献

一个腔内倍频,Q开关的Nd:YLF发射波长为527 nm的设计与目标的时间拉伸的Q开关脉冲在几个毫焦耳的脉冲能量高达几微秒。采用不同的谐振腔结构,脉冲宽度在12 μs ~ 3 μs之间,能量在1 mJ ~ 4.5mJ之间,满足了眼科应用的要求。对于更紧密的腔内焦点和高泵浦功率,然而,强烈的功率调制的皮秒脉冲序列的微秒脉冲的后侧翼观察到,表明级联非线性和锁模的发生。同时,还发现基本光谱显着增加,最大可达5 nm。之前通过使用ppKTP进行腔内二次谐波产生,也观察到了类似的效应,称为增益增宽。据我们所知,这是第一次观察到这种效果与非极化二次谐波介质。
An intracavity frequency doubled, Q-switched Nd: YLF emitting at a wavelength of 527 nm was designed with the goal to temporally stretch the Q-switched pulses up to some microseconds at pulse energies of several millijoules. With different resonator configurations pulse durations between 12 μs and 3 μs with energies of 1 mJ–4.5 mJ have been achieved, which is demanded for an application in ophthalmology. For tighter intracavity foci and high pump power, however, strong power modulations by trains of picosecond pulses on the rear flank of the microsecond pulses were observed, indicating the occurrence of cascading nonlinearities and mode-locking. Simultaneously a significant increase of the fundamental spectrum up to 5 nm was found. A similar effect, which is referred to as gain broadening, has previously been observed by using ppKTP for intracavity second harmonic generation. This is, to the best of our knowledge, the first observation of this effect with unpoled second harmonic media.
二极管阵列侧面泵浦 Nd:YLiF4 激光器
DOI: --
发表时间: 1990
期刊: Photonics West - Lasers and Applications in Science and Engineering
影响因子: --
作者:
R. Utano;Douglas A. Hyslop;T. H. Allik
通讯作者: T. H. Allik
高效率 Nd3+ : LiYF4 激光器
DOI: --
发表时间: 1973
期刊:
影响因子: --
作者:
E. Sharp;D. J. Horowitz;J. Miller
通讯作者: J. Miller
μs 翠绿宝石激光脉冲的腔内倍频
DOI: --
发表时间: 1994
期刊: Photonics West - Lasers and Applications in Science and Engineering
影响因子: --
作者:
R. Brinkmann;K. Schoof
通讯作者: K. Schoof
2 μm 光谱范围内的时间拉伸 Q 开关脉冲
DOI: --
发表时间: 2011
期刊: 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)
影响因子: --
作者:
I. Rohde;D. Theisen;R. Brinkmann
通讯作者: R. Brinkmann
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
A. A. Mani;Dan Lis;Y. Caudano;P. Thiry;A. Peremans
通讯作者: A. Peremans