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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=62" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <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">四种常见的非均匀光纤光栅 </h1> <p class="xg1"> 时间：2021-11-4 08:47<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1321)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=9332&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>对于非均匀光纤光栅而言，光纤的轴向被纤芯空间周期和其折射率调制大小变化而影响。常见的非均匀光纤光栅只要有下列四种。</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> 对于非均匀光纤光栅而言，光纤的轴向被纤芯空间周期和其折射率调制大小变化而影响。常见的非均匀光纤光栅只要有下列四种。</div><div><br></div><div> （1）相移光纤光栅。其本质为透射型滤波器件，该光纤光栅由于折射率周期性变化的光纤光栅中一些位置发生相位突变，从而导致光纤光栅中存在缺口，因此光栅光谱中会有一些透射窗口。这种性能可以在滤波、波分复用等领域得到广泛应用。</div><div><br></div><div> （2）超结构光纤光栅。亦可称之为取样光纤光栅。其光栅区域是由一些均匀光纤光栅按相同间距级联构成的，因此其折射率变化区域是不连续的。这也就使这种光纤光栅周期与FBG周期为一个量级。超结构光纤光栅被用于光纤<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>器等领域。</div><div><br></div><div> （3）切趾光纤光栅。对光纤光栅用特定的函数完成切趾，既可以达到对光纤光栅折射率调制大小进行调制的目的，又可以有效抑制边模，将完成切趾的光纤光栅称为切趾光纤光栅。在密集波分复用器中使用的较多。</div><div><br></div><div> （4）啁啾（chirped）光纤光栅。纤芯空间周期与其折射率调制大小并不是恒定的，会逐渐发生变化。入射光在chirped光纤光栅中传递到的位置存在差异时，其反射的波长也会随之发生改变。因此，chirped光纤光栅被用于色散补偿器中。</div><div><br></div><div><div 0px;"="" 255);"="" 255,="" rgb(255,="" simsun;="" yahei",="" microsoft="" style="overflow-wrap: normal; color: rgb(143, 143, 143); text-indent: 28px; font-family: 微软雅黑; background-color: rgb(255, 255, 255);"><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); text-indent: 28px; font-family: 微软雅黑; background-color: rgb(255, 255, 255);"><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); text-indent: 28px; font-family: 微软雅黑; background-color: rgb(255, 255, 255);">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); text-indent: 28px; font-family: 微软雅黑; background-color: rgb(255, 255, 255);"><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); text-indent: 28px; font-family: 微软雅黑; background-color: rgb(255, 255, 255);"><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; 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