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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">紧凑型光模块的结构组成 </h1> <p class="xg1"> 时间：2019-1-16 13:21<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1992)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=7385&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=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>光模块是光通信传输系统中非常重要的有源器件，是进行光电和电光转换的光电子模块，能够在光通信中起到光电信号转换的作用。随着通信市场的高速发展，光模块也在随之不断演进，如今，以小型封装为主的紧凑型光模块已 ...</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"><p style="text-align: left; text-indent: 2em;"><font color="#000000"><span class="hrefStyle">光模块</span>是<span class="hrefStyle">光<a href="http://ofc.oecr.com" target="_blank" class="relatedlink">通信</a></span>传输系统中非常重要的有源器件，是进行光电和电光转换的光<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>模块，能够在<a href="http://ofc.oecr.com" target="_blank" class="relatedlink">光通信</a>中起到光电信号转换的作用。随着通信市场的高速发展，光模块也在随之不断演进，如今，以小型封装为主的紧凑型光模块已经获得了广泛普及。</font></p><p style="text-align: left; text-indent: 2em;"><font color="#000000">紧凑型光模块就是<span class="hrefStyle">SFP</span>封装的热拔插小型封装模块，其主要功能是将发送端的电信号转换为光信号传输出去，接收端接收信息后将光信号还原为电信号。紧凑型光模块主要是由<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>器（包括发射器TOSA和<span class="hrefStyle">接收器</span>ROSA)以及线路板IC及外部配件构成，外部配件则有外壳、底座、PCBA、拉环、卡扣、解锁件、橡胶塞组成。</font></p><p style="text-align: left; text-indent: 2em;"><font color="#000000">从关键功能上看，紧凑型光模块主要由TOSA组件、ROSA组件和PCBA板三大部分组成。发射组件TOSA是光发射模块的主要部件 ,其中光源激光二极管是核心，LD<span class="hrefStyle">芯片</span>和监测光电二极管(MD)加上其他元件封装在TO同轴中就构成光发射组件TOSA。接收组件ROSA的作用是把经过传输后的微弱光信号转换为电信号 ,并放大、整形恢复为原输入的电信号。将光电检测器和前置(跨阻)放大器加上其他元件封装在一个紧密结构中就构成接收组件ROSA，常用的ROSA有PIN-TIA和APD-TIA。PCBA板， PCBA由光发射<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电路</a>和接收电路组成，主要的芯片有驱动芯片和限幅放大器、储存芯片。 </font></p><p style='margin: 0px; padding: 0px; text-align: center; color: rgb(143, 143, 143); font-family: Tahoma, "Microsoft Yahei", Simsun; -ms-word-wrap: normal; background-color: rgb(255, 255, 255);' microsoft="" yahei",="" simsun;="" rgb(255,="" 255,="" 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