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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=61" 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">怎么产生绿光激光器？英国科学家提出新途径 </h1> <p class="xg1"> 时间：2016-11-8 11:04<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1984)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=5024&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=61" 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>最近英国的科学家提出了产生绿光激光器的新途径。本文为您介绍了产生绿色激光器的一些原理和方法。光学爱好者们可以看看。</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> 怎么产生绿光<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>器？最近英国的科学家提出了新途径。英国格拉摩根大学Kang Li，Aiyun Yao等人发表的文章报道了基于<a href="http://sensor.oecr.com" target="_blank" class="relatedlink">半导体</a>激光器模块和MgO：PPLN<a href="http://material.oecr.com" target="_blank" class="relatedlink">晶体</a>的绿光激光器。有兴趣的朋友们请随光电工程师小编看看下面的内容吧。</div><div><span style="line-height: 1.8em;"><br></span></div><div><span style="line-height: 1.8em;"> 在激光<a href="http://display.oecr.com" target="_blank" class="relatedlink">显示</a>、光存储、生物光子学等领域</span><span style="line-height: 25.2px;">绿光激光器</span><span style="line-height: 1.8em;">有着广泛的应用，但目前为止仍然不能很方便的生产出来。当前有几种途径得到绿光激光器。最常见的是利用掺Nd类激光器倍频得到。还有一种技术方法被称为VECSEL（vertical external-cavity surface-emitting laser)，这种方法因为结合了半导体激光器和腔外倍频方法的便利性，使得绿光激光器更加紧凑和小型化。而文章中提出的方法是直接利用近红外的半导体激光器模块加上单次通过的倍频晶体组合得到绿光输出，该方法在成本上更加低廉，且集成程度最高。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div><p style="text-align: center;"><a href="data/attachment/portal/201611/08/105912ijo6joj629mezljk.jpg" target="_blank"><img src="data/attachment/portal/201611/08/105912ijo6joj629mezljk.jpg"></a></p><p style="text-align: center;"><br></p></div><div><span style="line-height: 1.8em;"> 实验装置图如上图所示，半导体激光器模块长度仅为3.6 mm，其中包括了49个窄条发射器，每个发射器的光斑大小为0.5 um×4 um，两个方向的远场发散角分别为7°和22°，发射面均镀以1064 nm高透膜，透过率大于99.9%以保护半导体激光模块。L1用来校准从半导体激光模块的出射光。L2包括了49个微型透镜，经过聚焦后1064 nm激光进入MgO：PPLN晶体。MgO:PPLN晶体大小为10 mm×13 mm×0.5 mm，两面均镀以532 nm， 1064 nm减反膜，晶体周期为被屏蔽2 um。</span><span style="line-height: 1.8em;">在工作电流为45 A的情况下得到了最大的绿光输出功率1.31 W，激光中心波长为543.7 nm。对光束质量因子M2进行了精确<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>，正交两个方向分别为12.1和2.9。利用此种方法得到的绿光激光器成本低廉，结构极其紧凑，长度仅为44.5mm。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div><span style="line-height: 1.8em;"> 以上就是光电<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>跟大家分享的</span>英国科学家提出产生绿光激光器的方法。有兴趣的光学爱好者们可以好好地看看。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201611/08/110236ku6g9kyoo6titcyy.jpg" target="_blank"><img src="data/attachment/portal/201611/08/110236ku6g9kyoo6titcyy.jpg"></a></p><p style="text-align: center;"><br></p><p style="text-align: center;"><span style="line-height: 25.2px;">欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师社区网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" class="relatedlink">科普</a>等精彩内容，欢迎交换友情链接</span><span style="line-height: 25.2px;">(</span><b style="line-height: 25.2px;"><a 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