请教一个高能光纤的问题

sar_liu

看我的图，就这么算，不解释，有了老夫的秘籍，小学生都会算。

sar_liu

过年了哥心烦。。。
看着人家过年拿大红包，我的年终奖是我今年销售额的千分之三点一七。。。
我还舔着脸跟人家说我是激光器销售工程师。。。

dabaorabbit

小伙不容易啊，技术兼销售，看完你上面的贴图，我对您的敬仰犹如滔滔江水连绵不绝，黄河泛滥，一发不可收拾~~~

guangdianwoai

我刚开始光纤传感的工作，看到各位大牛的讨论，限于自身的知识水平，只能理解一点点，我想问个比较原始的问题，我一直没理解，就是“模式”这概念，光纤中传播的模式现有的教材里是讲由于边界的限制，导致电磁场解不连续，这不连续的场解就叫模式。我为了理解，推导了麦克斯韦方程组，得到各向同性介质中的波动方程，求解时也没什么边界条件啊，依旧没理解。。。。请教各位大侠了。。。

optapollo

sar_liu 发表于 2012-1-7 10:08
感谢各位帮忙分析。
我忘了说了，1064nm 单脉冲出30mJ的时候，重频是1Hz.最高重频30Hz的时候，1064nm单脉冲 ...

i think your are not considering nonlinear effect limit but bulk damage or surface damage limit, right? If that's the case, at least you can easily estimate the fiber diameter theoretically.

by the way why do they change the fiber after seven times ?

sar_liu

optapollo 发表于 2012-1-27 15:26
i think your are not considering nonlinear effect limit but bulk damage or surface damage limit, r ...

3Q~

theory is just theory, you know. Exp is what I want.

The reason is that the head face of the fiber had been damaged after several laser pulses. The transmissivity of the laser pulse will drop from 80% to 5% even more less. So the test is fucked up.

我还会说英语，咋就不给我涨工资呢。。。

ALPHOTONIC

optro 发表于 2012-1-6 19:37
您肯定是拿到了诺贝尔奖的项目，有很多人早就想把调Q光输入到光纤，但是都失败了，您不要听YCTT的忽悠，光 ...

那调Q的光纤激光器是怎么回事？求指点

optapollo

sar_liu 发表于 2012-2-1 16:15
3Q~

theory is just theory, you know. Exp is what I want.

sounds interesting. never played with such high energy pulses. Have u ever tried to check the fiber facet after each shot? See how the fiber facet changes after each shot and make sure there are no any dust particles on the fiber facet. A Protection cover might be helpful too? Or eventually use hermetic seal? Just wild guess. Good luck!

optro

ALPHOTONIC 发表于 2012-2-3 17:45
那调Q的光纤激光器是怎么回事？求指点

那是杜撰 ！

optro

为什么禁止optapollo 发言？

optro

sar_liu 发表于 2012-2-1 16:15
3Q~

theory is just theory, you know. Exp is what I want.

哈哈，知道了？还好，没有从中间一节节 地断开。
您买张老板东西了吗？

smarter

是啊，还在为m方这样的低级问题争吵，真的很无聊，吃饱撑的。。