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首页> 外文会议>International Conference on ITS(Intelligent Transport Systems Standardization) Telecommunications Proceedings(ITST2006); 20060621-23; Chengdu(CN) >Performance and Noise Analysis of VCSEL ROF Using Spherical-ended Multimode Fiber Coupling
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Performance and Noise Analysis of VCSEL ROF Using Spherical-ended Multimode Fiber Coupling

机译：球形端多模光纤耦合的VCSEL ROF性能和噪声分析

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摘要

A low cost Radio-over-Fiber (ROF) transmitter has been built based on extremely low cost 850nm vertical-cavity surface-emitting laser (VCSEL) diode using spherical-ended multimode fiber (MMF) coupling technique. This technique has been shown to deliver excellent light launching characteristics for VCSEL lasers in short haul ROF applications. Transmission distance of more than 600m has been demonstrated experimentally with consistent performance highly desired for transmitting WLAN RF signals in both 2.45 and 5.25GHz in a directly modulated MMF VCSEL short haul ROF link. Various coupling methods and the bonding process of mating the VCSEL to MM fiber have been investigated to optimize the optical power coupling for cost reduction and low complexity. The results show that the transmitter coupled by spherical-ended MMF provides 30% more optical coupling efficiency and enhanced noise figure performance than the lens-less flat cleaved alternative.
机译：基于球形端多模光纤（MMF）耦合技术的超低成本850nm垂直腔表面发射激光器（VCSEL）二极管，构建了一种低成本的光纤无线电（ROF）发射器。该技术已被证明可以在短距离ROF应用中为VCSEL激光器提供出色的光发射特性。实验证明，超过600m的传输距离具有一致的性能，这对于在直接调制的MMF VCSEL短距离ROF链路中以2.45和5.25GHz传输WLAN RF信号而言是非常需要的。已经研究了各种耦合方法和将VCSEL与MM光纤匹配的结合工艺，以优化光功率耦合，从而降低了成本并降低了复杂度。结果表明，与无透镜扁平开裂方案相比，通过球端MMF耦合的发射机提供了30％的光耦合效率和更高的噪声系数性能。

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