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<div class="ss"><div><span>导读： </span>澳大利亚悉尼大学的纳米科学与技术研究所，可用光学系统的超高带宽设备电弧研究中心的研究人员（CUDOS）实现了通信领域的技术的突破，只做了一个在亚纳秒级的时间尺度上的芯片级光学器件可用于射频信号的控制。</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> 突破！光子学领域将为无线<a href="http://ofc.oecr.com" target="_blank" class="relatedlink">通信</a>系统革命铺平道路！澳大利亚悉尼大学的<a href="http://material.oecr.com" target="_blank" class="relatedlink">纳米</a>科学与技术研究所，可用光学系统的超高带宽设备电弧研究中心的研究人员（CUDOS）实现了通信领域的技术的突破，只做了一个在亚纳秒级的时间尺度上的芯片级光学器件可用于射频信号的控制。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201704/06/091548ux88dxmqxsuuqczx.jpg" target="_blank"><img src="data/attachment/portal/201704/06/091548ux88dxmqxsuuqczx.jpg"></a></p></div><div><br></div><div> <font color="#f00000"><b>无线电频率（RF）是一种特殊的电磁波频率范围，广泛用于通信和雷达信号。这项工作仍旧影响着当前的无线革命。</b></font></div><div><br></div><div> 这一突破性革命研究进展情况在《Optica》杂志上进行了详细的描述。</div><div><br></div><div> 目前在悉尼大学就读的科学和<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>学学院的博士生，论文的第一作者刘洋说，新的研究可以解锁无线网络世界所面临的带宽瓶颈问题，这一研究在澳大利亚纳米科学与技术研究所总部进行，即悉尼科学中心。</div><div><br></div><div> “如今，大约有100亿个移动设备连接到无线网络（由思科去年报告），这些设备都需要带宽和容量，”刘说。</div><div><br></div><div> 通过在芯片上创建非常快的可调延迟线，最终可以为更多的用户提供更广泛的带宽。</div><div><br></div><div> “快速控制射频信号的能力是在日常生活和国防中应用的关键性能。”</div><div><br></div><div> “例如，为了减少功耗和最大限度地提高接收范围为未来的移动通信，RF信号需要实现定向和快速地从信息中心分布到不同的蜂窝用户，而不是向各个方向传播信号能量。”</div><div><br></div><div> 在现代通信和国防中的RF技术的高速度的缺乏，促使紧凑的光学平台上的解决方案的发展。</div><div><br></div><div> 这些光学器件通常是由性能较低的调谐速度限制，由于片上加热而限制调制速度为毫秒（1 /秒的1000），产生了制造复杂度和功耗等副作用问题。</div><div><br></div><div> “为了解决这些问题，我们开发了一种基于光学控制的简单技术，响应时间比纳秒（十亿分之一秒）还要快，比片上加热<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>快一百万倍，”刘说。</div><div><br></div><div> 学院的科学主任和教授Benjamin Eggleton，也是研究纳米光子学<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电路</a>的资深研究人员，他说这项技术将不仅可用于建立更有效的雷达探测，但也为大家的宽带等服务做出重大改进。</div><div><br></div><div> “这样的系统将是至关重要的，不仅要保障我们的防御能力，这也将有助于培养出所谓的无线革命，将越来越多的设备连接到无线网络，”Eggleton教授说。</div><div><br></div><div> “这包括物联网、第五代（5G）通信、智能家居和智能城市。</div><div><br></div><div> 硅光子学，支撑着这个先进技术，其进展很快，如今就已在数据中心的到应用”。</div><div><br></div><div> “我们希望这项工作的应用程序将在十年内实现，为无线宽带问题提供解决方案。</div><div><br></div><div> “我们目前正在研究更先进的硅器件，其结构将是高度集成的，可以用于小型移动设备，”Eggleton教授说。</div><div><br></div><div> 通过光变控制信号在千兆赫的速度，RF射频信号的时间延迟可以被放大，将和开关速度是相同的。</div><div><br></div><div> 刘和他的同事Amol Choudhary博士、David Marpaung博士和Eggleton教授共同取得了这一集成光子芯片的研究成果，为实现超快的片上可重构射频系统铺平道路，其低功耗、低制造的复杂性、灵活性和并且与现有的RF功能相兼容性的特点将具有很大的优势。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/201704/06/091601kbbcc6mr0z6djmy6.jpg" target="_blank"><img src="data/attachment/portal/201704/06/091601kbbcc6mr0z6djmy6.jpg"></a></p><p style="text-align: 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