1) Ultrashort pulse
超短脉冲
1.
Multi-user detector for ultrashort pulse optical code-division multiple-access systems;
超短脉冲光码分多址系统中的多用户检测器
2.
Development of visible ultrashort pulse laser realized by semiconductor saturable absorption mirror as an absorber for passive modelocking;
半导体可饱和吸收镜作为被动锁模吸收体实现超短脉冲可见激光发展状况
2) ultra-short pulse
超短脉冲
1.
The Ultra-short Pulse Evolution Characteristic in Self-similar Parabolic Pulse Fiber Amplifier;
自相似抛物脉冲光纤放大器中超短脉冲的演化特性
2.
Development of optically pumped semiconductor(CPS) vertical-external-cavity surface-emitting lasers(VECSEL) in generating ultra-short pulse;
产生超短脉冲的光泵浦垂直外腔面发射激光器的研究进展
3.
Propagation and spatiotemporal coupling of iso-diffraction ultra-short pulsed Hermite Gaussian beams in free space
等衍射超短脉冲厄米高斯光束在自由空间中的传输及其时空耦合效应
3) ultra short pulse
超短脉冲
1.
Principle and measurement of ultra short pulse fiber laser;
超短脉冲光纤激光器工作原理及其测量
2.
In this paper, a ultra short pulse generator is introduced that generates high voltage pulses with extremely short duration, however it s power consumption is very low.
介绍一种超短脉冲发生器 ,它可以重复产生宽度极窄的高电压脉冲 ,而功耗却很低。
3.
One kind of new high efficiency ultra short pulse laser has been designed.
设计了一种新型大功率超短脉冲激光器,将两种传统产生超短脉冲的方法(调Q和锁模)有效的结合起来,并对激光器的各个环节的设计作了说明。
4) ultrashort optical pulse
超短光脉冲
1.
Reconstruct waveform and phase of ultrashort optical pulse by fringe-resolved second harmonic generation correlation;
条纹分辨二次谐波自相关法重建超短光脉冲的波形和相位
2.
EDFA-based ultrashort optical pulse amplification and its developments
基于EDFA的超短光脉冲放大技术及其进展
3.
This paper describes the principle and defect of measuring the shape and chirp of the ultrashort optical pulse by means of intensity autocorrelation and interferometric autocorrelation,and proposes a theory and an apparatus for directly measuring the amplitude and phase spectra.
本文分析了利用强度自相关和干涉自相关信息获取超短光脉冲形状和啁啾特性的方法及其缺陷。
5) ultrashort optical pulses
超短光脉冲
1.
By using distributed feed back laser diode and gain switching technology the characteristicsof ultrashort optical pulses under different conditions are studied.
本文用分布反馈半导体激光器和增益开关技术,研究了不同工作条件下超短光脉冲的输出特性。
2.
The principle to measure S parameters of microwave devices with ultrashort optical pulses has been described.
描述了用超短光脉冲测量微波器件S参数的基本原理和建立的测量系统。
3.
Generation of ultrashort optical pulses from semiconductor lasers by strong current modulation is discussed theoretically and some experimental results of ultrashort optical pulse generation from semiconductor lasers by microwave strong modulation are explained.
从理论上讨论了强调制半导体激光器产生的超短光脉冲,解释了用微波强调制半导体激光器产生超短光脉冲的实验结果。
6) Ultrashort pulse
超短光脉冲
1.
It is a key problem to detect the ultrashort pulse in optical communication system.
在光纤通信系统中,超短光脉冲的检测一直是一个重要的问题。
2.
By using KTP nonlinear crystal as extracavity frequency doubling and combining stimulated Raman scattered (SRS) technique in a CPM unstable resonator Nd∶YAG laser, the ultrashort pulses at three different wavelengths of 1.
63μm超短光脉冲的输出。
补充资料:超短脉冲激光频率转换材料
超短脉冲激光频率转换材料
materials for ultrashort pulses laser frequency conversion
超短脉冲激光频率转换材料materials forultrashort Pulses laser frequeney eonversion用于脉冲宽度从微微秒直到几十毫微微秒激光的频率转换材料。超短脉冲激光具有短的脉宽,较好的模式特性以及高的峰值功率,从而具有很强的非线性性能。经频率转换后,短波的超短脉冲可产生强的光化学反应,是探索微观世界和超高速现象的极为有用的光源。此外,采用薄片倍频材料的超短脉冲倍频,可以作为超短脉冲脉宽测量的一种简便有效的方法,在技术上有实用价值。 对超短脉冲激光频率转换材料的性能主要有以下要求:①高的光损伤闭值。由于超短脉冲的高峰值功率,因而对材料的光损伤阑值提出高的要求,一般要大于GW/cmZ。②相位匹配特性。超短脉冲在空间的尺度短到毫米及几百微米量级,短脉冲波包在材料中以群速度传播。因而,除一般的相速度匹配外,还应满足群速度匹配才能获得较高的能量转换效率。对光学均匀材料,要求基频和倍频波的折射率色散小,才能获得较好的群速度匹配。对I类匹配,群速度要求稍低;对n类匹配要求太苛刻,很难应用。由于群速度失配存在,一般器件只取亚毫米的厚度。过长的光程于能量转换无补,反而引入脉宽的展宽以及能量的损耗。③透过波段。首先要求对参与频率转换的激光波长有高的透过率。对超短脉冲应用场合,材料应有更短的紫外吸收边。其原因是吸收边会增加材料的折射率色散;远离使用波长的吸收边,可使材料获得较好的群速度匹配。 钱激光超短脉冲频率转换的常用材料是磷酸二氢钾(KDP)类晶体。此外,新开发的三硼酸锉(LBO)晶体,由于其高的抗光损伤阑值、好的紫外透过率以及小的色散,也是好的超短脉冲频率转换用材料。有机晶体精氨酸磷酸盐(LAP)和氛化精氨酸磷酸盐(D一LAP)也可用作超短脉冲频率转换用材料。 (邵宗书)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条