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<div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">非线性偏振旋转 </h1> <p class="xg1"> 时间：2021-11-23 10:43<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(110)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=9363&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a>来自: 网络平台</p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>非线性偏振旋转是光纤中光的偏振方向变化与光强有关的现象。</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 非线性偏振旋转是光纤中光的偏振方向变化与光强有关的现象。</div><div><br></div><div> 当强光学脉冲在非偏振保持光纤中传播时，其偏振态变化是非线性的（即，与强度有关）。准确的来说病去世线偏振方向的旋，而是变成椭偏振态。这一效应的<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>起因与自相位调制和交叉相位调制，以及光纤中的双折射有关。如果脉冲通过一个偏振器，功率通过率与光功率也有关。</div><div><br></div><div> 由于非线性偏振旋转影响光纤放大器系统的工作，它常用在光纤<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>器中用于被动锁模（参阅锁模光纤激光器）。</div><div><br></div><div> 一种典型的结构包含一些光纤偏振控制器或者波片，调节使ZUI大的透射率对应得到ZUI高光强。</div><div><br></div><div> 因此这种结构可看做人为控制的饱和吸收器。由于克尔效应非常快，因此吸收器也很快，且其强度可通过调节偏振控制器来改变。因此利用非线性偏振旋转的模式锁定非常有优势。但是，很大的确定是ZUI佳偏振设置会随温度变化，因此需要重新调节，在实验上定量化和实现特定的调制深度和饱和功率比较困难。</div><div><br></div><div> 另一种对环境不太敏感的利用非线性偏振旋转的锁模技术可以采用高双折射光纤（偏振保持）和法拉第旋转器。但是，这种装置不太容易实现全光纤装置。</div><div><br></div><div> 利用非线性偏振旋转的模式锁定技术也称为偏振附加脉冲锁模。附加脉冲锁模ZUI早是用在体激光器中。</div><div><br></div><div> 其中干涉发生在两束在激光器装置中不同方式传播的光束之间，二者在传播过程中产生了不同的克尔非线性。</div><div><br></div><div> 但是，非线性偏振旋转也可以是在同样路径传播的不同偏振成分之间的干涉。二者之间的不同是交叉相位调制也会发生在非线性偏振旋转中。</div><div><br></div><div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" style="overflow-wrap: normal; color: rgb(143, 143, 143); background-color: rgb(255, 255, 255); text-indent: 28px; font-family: 微软雅黑;"><span style="overflow-wrap: normal;">免责声明：编写或转载此文是为了传递更多的信息，为光电行业尽一些绵薄之力。若文字或图片侵犯了您的合法权益或有不当之处，请作者在20个工作日之内与我们联系，我们将协调给予处理。</span></div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" start;"="" normal;="" 400;="" 14px;="" style="overflow-wrap: normal; color: rgb(143, 143, 143); background-color: rgb(255, 255, 255); text-indent: 28px; font-family: 微软雅黑;"><br style="overflow-wrap: normal;"></div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" start;"="" normal;="" 400;="" 14px;="" style="overflow-wrap: normal; color: rgb(143, 143, 143); background-color: rgb(255, 255, 255); text-indent: 28px; font-family: 微软雅黑;">联系邮箱：lm@focaloptics.com，欢迎相关行业朋友与我们约稿。谢谢。</div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" start;"="" normal;="" 400;="" 14px;="" normal;"="" 255);="" style="overflow-wrap: normal; color: rgb(143, 143, 143); background-color: rgb(255, 255, 255); text-indent: 28px; font-family: 微软雅黑;"><br style="overflow-wrap: normal;"></div><p class="MsoNormal" 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" start;"="" normal;="" 400;="" 14px;="" style="overflow-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143); background-color: rgb(255, 255, 255); text-indent: 28px; font-family: 微软雅黑;"><span lang="EN-US" major-latin;mso-bidi-font-family:微软雅黑"="" mso-ascii-theme-font:major-latin;mso-fareast-font-family:微软雅黑;mso-hansi-theme-font:="" cambria","serif";="" style="overflow-wrap: normal; font-size: 12pt;"></span></p><p align="center" style="overflow-wrap: break-word; margin: 0px 0px 12px; padding: 10px 0px 0px; color: 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xw0">2021-11-23 14:13</span> </dt> <dd>传说中的沙发？？？哇卡卡。</dd> </dl><a name="comment_anchor_31220"></a> <dl id="comment_31220_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(31220, '9363');">引用</a> </span> <a href="http://club.oecr.com/space-uid-27.html" class="xi2 xw1" c="1">11066</a> <span class="xg1 xw0">2021-11-23 13:13</span> </dt> <dd>微信号：oecrcom 大家加了没有？</dd> </dl><a name="comment_anchor_31217"></a> <dl id="comment_31217_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(31217, '9363');">引用</a> </span> <a href="http://club.oecr.com/space-uid-32273.html" class="xi2 xw1" c="1">homne</a> <span class="xg1 xw0">2021-11-23 11:43</span> </dt> <dd>呵呵。。。</dd> </dl><a name="comment_anchor_31214"></a> <dl id="comment_31214_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(31214, '9363');">引用</a> </span> <a href="http://club.oecr.com/space-uid-87448.html" class="xi2 xw1" c="1">novaliu</a> <span class="xg1 xw0">2021-11-23 10:43</span> </dt> <dd>找这个很久了。</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" class="area"></div><!--[/diy]--> </div> <div class="sd pph"> <div class="drag"> <!--[diy=diyrighttop]--><div id="diyrighttop" class="area"><div id="frameorJGGx" class="sy_ltdr frame move-span cl frame-1"><div class="frame-title title"><span class="titletext">社区成员推荐</span></div><div id="frameorJGGx_left" class="column frame-1-c"><div id="frameorJGGx_left_temp" class="move-span temp"></div><div id="portal_block_930" class="cl_block_bm block move-span"><div id="portal_block_930_content" class="dxb_bc"><div class="module cl ml mls"> <ul><li> <a href="http://club.oecr.com/space-uid-126440.html" c="1" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=126440&size=small" width="71" 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