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正在搞关于多模光纤衰减上的测试，很不稳定，要使用扰模器来优化模式配比，谁有这方面的书籍，资料，或给出个网址，主要是关于扰模器的标准，像曲率，绕线的匝数等等，谢谢大家，救命啊。</div> <div class="postmsg"><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>连这个也不知道, 做什么测试啊?!</P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>就是告诉你, 你还是不会测的!</P></div> <div class="postmsg"><div class="quote"><blockquote><B>以下是引用<I>flux</I>在2004-12-14 15:46:55的发言：</B><br /> <br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>连这个也不知道, 做什么测试啊?!</P><br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>就是告诉你, 你还是不会测的!</P></blockquote></div><br /> <<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>你上面给出的信息有用吗，最讨厌这种什么信息都不提供，就会在这里显的人，你牛比可以，你想羞辱人也可以，那你把信息给出来啊，既然你什么都知道，来论坛干什么。</P></div> <div class="postmsg">好象FLUX很会羞辱人 这样子只会让很多人看不起你。做人要厚道 大家都是来学习的啊</div> <div class="postmsg"><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>我绝对没有要羞辱人的主观. </P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>来这里是学习的. 我也知道.</P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>可是我觉得有人问问题很奇怪. 自己对所做的东西一点不懂, 为什么要不这个活揽下?</P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>在老板面前要逞强, 我不知为什么? </P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>就这个问题本身, 若你想知道些概念, 从很多书上都可以得到. 但测试的时候的确有</P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>其它的问题, 若你不理解, 很难得到正确的测试参数. 所以我也就这么说了.</P><<img src="static/image/smiley/default/titter.gif" smilieid="9" border="0" alt="" />>若觉得我的言词不合适, 那我向大家道歉.</P></div> <div class="postmsg">我倒是翻过一些资料。里面只有原理和测试方法，不过比较的复杂，还需要设备。具体的绕纤OD,数量未做定义。大家都是学习了，不要说那些没用的话。知道的都说出来。不知道的可以讨论，互相进步。</div> <div class="postmsg">我這邊有份文件有提到多模光纖的Launch condition及擾模紮數的定義<br /> <br /> Understanding Launch Conditions for Multimode Connector and Cable-Assembly Testing<br /> <br /> FYR</div> <div style="height200px;"></div> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a href="http://m.oecr.com" >手机版</a><span class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a href="http://www.focaloptics.com" title="主办单位：武汉焦点光学技术有限公司" target="_blank" >焦点光学</a><span class="pipe">|</span><a href="http://www.oecr.com" target="_blank">光电工程师社区</a> ( <a href="http://beian.miit.gov.cn/" target="_blank">鄂ICP备17021725号-1</a> <a href="http://www.beian.gov.cn/portal/registerSystemInfo?recordcode=42011102000821" target="_blank">鄂网安备42011102000821号</a> ) <span id="tcss"></span><script 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