用两个自饱和吸收体，弛豫时间不一样的，再加上短腔设计，合适的参数，就可以产生1ns输出
可否留个email详谈！！！
原帖由 jeank 于 2008-7-24 12:53 发表 static/image/common/back.gif
用两个自饱和吸收体，弛豫时间不一样的，再加上短腔设计，合适的参数，就可以产生1ns输出
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频率呢？平均功率呢？
email地址已站内短信，请查收一下
CR4：YAG可以，我有现成的
压到几个ns没问题
微腔+腔倒空，例子 brightsolution的wedge激光器
http://www.brightsolutions.it/index.php?pageId=15
Wedge DPSSL
High Peak Power Diode Pumped Solid State Laser
All solid state design
Patented Polarization-Switching Technology
Less than 1.5 ns pulse duration
Up to 1 MW peak power
Low heat waste,air cooling
WEDGE emits pulses of 1.5 mJ energy at 1064 nm, duration shorter than 1.5 ns and peak powers exceeding 1 MW.
Based on a proprietary electrooptic Q-switching technology,this monolithic laser source features a very high peak power with excellent wall plug efficiency.
The sealed miniaturized laser head is insensitive to vibrations and harsh environments. High output peak power with relatively low Q-switch energy allows efficient nonlinear harmonic or parametric generation as well as interaction with a wide range of materials.
Harmonic options available:
Second harmonic @ 532 nm
Third harmonic @ 355 nm
Two mechanical configurations available:
Single Unit.
Dual Unit. A Resonator Unit is linked to a Pumping Unit via a fiber optic cable and a Q-switch cable.
Both the versions have built-in finned heat exchangers for air cooling.
Applications
Nonlinear spectroscopy
2nd and 3rd harmonic generation
Visible to IR OPO pumping
Material processing
Surface and intra-volume glass marking
如果为了达到1ns的脉宽，却使得频率不能连续调节就没有什么意义了
但有的用户就是需要窄脉宽，其他的不要求。
另外还有需要激光脉宽1～30ns连续可调的，不知各位有何高见？