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首页> 外文会议>Conference on optoelectronic interconnects, integrated circuits, and packaging >Widely Tunable Laser Technologies: Meeting the Needs of Tomorrow's Networks
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Widely Tunable Laser Technologies: Meeting the Needs of Tomorrow's Networks

机译：广泛调谐的激光技术：满足明天网络的需求

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Widely tunable lasers are an enabling technology that eliminate many of the limitations of fixed wavelength lasers, and enable new architectures with increased functionality. Beyond solving the logistical and inventory problems of growing channel counts, tunable lasers enable system architects to implement truly dynamic networks that can adjust to changing network demands in real time. This paper will discuss the general application of tunable lasers and enabled functionalities such as real-time channel provisioning, dynamic add/drop and network channel reconfiguration. Currently there are four primary approaches to providing tunability with semiconductor laser-each with distinct advantages and disadvantages. Tunable DFB (Distributed FeedBack) lasers use temperature to tune the wavelength. Distributed Bragg Reflector (DBR) lasers, on the other hand, extend the available tuning range beyong that of a tunable DFB using additional functional elements on the same semiconductor. A third approach uses a vertical-cavity surface-emitting laser (VCSEL) with MEMS (Micro-Electrical Mechanical Systems) technology to manipulate a movable top mirror. At New Focus, we have concentrated on External-Cavity Diode Laser (ECL) technology in order to provide wider tuning ranges (～ 100 nm) with higher output powers. Each of these technologies will be discussed and compared in reference to their advantages, disadvantages and likely application in emerging network architectures.
机译：可广泛的可调激光器是一种启用技术，可以消除固定波长激光器的许多限制，并使新架构具有增加的功能。除了解决渠道计数的后勤和库存问题之外，可调谐激光器使系统架构师能够实现真正的动态网络，可以实时调整到不断变化的网络需求。本文将讨论可调激光器的一般应用，并启用功能，如实时通道配置，动态添加/下降和网络信道重新配置。目前，有四种主要方法可以提供具有半导体激光的可调性，每个方法具有不同的优点和缺点。可调DFB（分布式反馈）激光器使用温度来调谐波长。另一方面，分布式布拉格反射器（DBR）激光器在同一半导体上使用附加功能元件，可调谐DFB的可用调谐范围Beyong。第三种方法使用具有MEMS（微电器机械系统）技术的垂直腔表面发射激光器（VCSEL）来操纵可移动的顶镜。在新的焦点上，我们集中在外腔二极管激光器（ECL）技术上，以便提供更宽的调谐范围（〜100nm），具有更高的输出功率。将讨论并比较这些技术中的每一个，并参考他们在新兴网络架构中的优缺点和可能应用。

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