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RCE MEASUREMENTS IN ROF OF IEEE802.16-2004(WIMAX) WITH STRUCTURALLY OPTIMIZED DFB LASERS

机译：采用结构优化的DFB激光的IEEE802.16-2004（WIMAX）ROF中的RCE测量

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摘要

In the Radio-over-Fiber (RoF) link of Worldwide Interoperability for Microwave Access (WiMAX) of IEEE802.16-2004, three different types of Multi-Quantum-Well (MQW) Distributed Feedback (DFB) Laser Diodes (LDs) are evaluated with Relative Constellation Error (RCE). The RCE is measured using a subcarrier frame of the IEEE802.16-2004. The two types of MQW-DFB-LDs are designed for community antenna television (CATV) applications. Another one is an Electro Absorption Modulation monolithically Integrated (EAMI) MQW-DFB-LD that is designed for 10Gb/s digital applications. The 1550nm and 1310nm MQW-DFB-LDs show similar RCE characteristics in the same test condition. The RCE values are lower than -44dB over the modulation powers between -5 and -20 dBm, and over the optical powers between 3 and 6mW. The EAMI-MQW-DFB-LD shows different RCE values, in comparison with the others. The RCEs lower than -40dB are obtained in a narrow range of the modulation powers between -10 to -15 dBm and the optical powers between 2 and 3.5mW. These results are similar to that of the Error Vector Magnitude (EVM) measurements in the IEEE802.11g (WLAN). Those types of MQW-DFB lasers are suitable for both the CATV and the WiMAX applications, and satisfy both the cost and the low RCE performance.
机译：在IEEE802.16-2004的全球微波接入互操作性（WiMAX）的光纤无线电（RoF）链接中，三种不同类型的多量子阱（MQW）分布式反馈（DFB）激光二极管（LD）是用相对星座误差（RCE）进行评估。使用IEEE802.16-2004的子载波帧来测量RCE。两种类型的MQW-DFB-LD用于社区天线电视（CATV）应用。另一个是专为10Gb / s数字应用设计的电吸收调制单片集成（EAMI）MQW-DFB-LD。 1550nm和1310nm MQW-DFB-LD在相同的测试条件下显示出相似的RCE特性。在-5和-20 dBm之间的调制功率以及在3和6mW之间的光功率下，RCE值低于-44dB。与其他相比，EAMI-MQW-DFB-LD显示出不同的RCE值。在-10至-15 dBm的调制功率和2至3.5mW的光功率的较窄范围内可获得低于-40dB的RCE。这些结果与IEEE802.11g（WLAN）中的错误矢量幅度（EVM）测量结果相似。那些类型的MQW-DFB激光器适用于CATV和WiMAX应用，并同时满足成本和低RCE性能的要求。

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