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<li>资料大小: 815.04 KB</li> <li>下载次数: 34</li> <li>上传会员: <a href="attachcenter-list.html?uid=35699" target="_blank" style="color:#FF9900">watermoon</a></li> <li>上传时间: 2008-09-25</li> <li>本站网址: <a href="http://forum.oecr.com/">forum.oecr.com</a></li> <li><a href="http://bbs.oecr.com/thread-75560-1-1.html" target="_blank">查看资料所在的主题</a></li> <li><a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=MzEyNTN8MjIxODk0N2J8MTc2NjQzNjg0MHwwfDA%3D" target="_blank" style="color:#FF9900">下载资料 </a></li> </ul> </div> <DIV style="CLEAR: both"></DIV> <b>欢迎下载本站资料，下载前请先登录您的社区账号。</b></div> </div> <DIV style="CLEAR: both"></DIV> <div class="bm cl" style="padding:5px;"> <p><button type="submit" class="pn vm" onclick="setCopy('http://forum.oecr.com/plugin.php?id=attachcenter:page&aid=31253', '链接已经复制到剪贴板');" type="submit"> <em>复制链接推荐给好友</em></button> <input type="text" class="px vm" onclick="this.select();setCopy(this.value, '链接已经复制到剪贴板');" value="http://forum.oecr.com/plugin.php?id=attachcenter:page&aid=31253" size="50" /></p> </div> <div class="bm"> <div class="bm_c xld"> <b>如何模拟多模光纤的激光输出？:</b><div class="postmsg">查文献上网找了不少时间，找不到什么好的结论。只有些线索说应用超高斯光束(类似平顶)来模拟，也找到一些超高斯光束的表达式，但不知道超高斯光束模拟时如何与多模光纤的NA, 芯径联系起来。大概NA可以推出远场发散角，但腰斑半径能否直接用芯径来表示呢？还有超高斯指数该如何选取呢？<br /> 另外也还不知道如何模拟超高斯光束通过透镜或Grin Lens的变换。<br /> LasCAD, Pplus, MatrixLaser都不能模拟超高斯光束。用高阶模来近似似乎不行。想用Zemax，但也还没找到模拟超高斯光束的方法。<br /> MatrixLaser的作者和watermoon等高人可以帮忙看看这个问题吗？<br /> <br /> [<i> 本帖最后由 再也不能这样 于 2008-9-25 11:30 编辑 </i>]</div> <div class="postmsg"><div class="quote"><blockquote>原帖由 <i>再也不能这样</i> 于 2008-9-25 11:28 发表 <a href="http://bbs.oecr.com/redirect.php?goto=findpost&pid=483293&ptid=75560" target="_blank"><img id="aimg_U7gMB" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" src="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" onload="thumbImg(this)" border="0" alt="" /></a><br /> 查文献上网找了不少时间，找不到什么好的结论。只有些线索说应用超高斯光束(类似平顶)来模拟，也找到一些超高斯光束的表达式，但不知道超高斯光束模拟时如何与多模光纤的NA, 芯径联系起来。大概NA可以推出远场发散角 ... </blockquote></div><br /> 关于平顶高斯的传输，上两篇文献给你参考：<br /> <br /> [<i> 本帖最后由 watermoon 于 2008-9-25 13:08 编辑 </i>]</div> <div class="postmsg">多谢watermoon。研究研究。。。。。。。。。。。。。。。</div> <div style="height200px;"></div> <ul class="xl xl2 cl" style="border-top: 1px #cccccc dashed;margin:5px 0 ;padding-top:5px"> <dl><b> 同一主题资料:</b></dl><dl class='icon'><img src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> <a href="attachcenter-page.html?aid=31252" title="2008-OLT-Propagation of flat-topped beams.pdf">2008-OLT-Propagation of flat-topped beams.pdf</a> <font color="#AAAAAA">(190.93 KB)</font> </dl> <dl class='icon'><img src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> <a href="attachcenter-page.html?aid=31253" title="abbr_13981e4b1d9a5bc42de737a6bc964e1d.pdf">abbr_13981e4b1d9a5bc42de737a6bc964e1d.pdf</a> <font color="#AAAAAA">(815.04 KB)</font> </dl> </div> 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