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首页> 外文期刊>Photonics Technology Letters, IEEE > src='/images/tex/19760.gif' alt='W'> -Band Coherent Wireless Link Using Injection-Locked Laser Diodes
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src='/images/tex/19760.gif' alt='W'> -Band Coherent Wireless Link Using Injection-Locked Laser Diodes

机译： src =“ / images / tex / 19760.gif” alt =“ W”> -使用注入锁定激光二极管的波段相干无线链路

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摘要

We demonstrate that the simultaneous injection locking of two monolithically integrated distributed feedback (DFB) laser diodes (LDs) with an optical frequency comb is a feasible technique for photonic-based carrier signal generation in the real-time coherent wireless link. The phase of the carrier signal generated by heterodyning the two injection-locked DFB LDs is sufficiently stable to achieve 10-Gb/s error-free (bit-error rate ) coherent wireless transmission in the -band (75–110 GHz) without active phase stabilization on the transmitter side and digital signal processing on the receiver side. Compared with a direct detection scheme, we show a 17-dB sensitivity improvement using coherent detection. These results open the path toward the development of compact and cost-effective coherent photonic wireless transmitters based on state-of-the-art InP photonic integrated circuit technology, which have wider bandwidth compared with electronics-based transmitters.
机译：我们证明了两个单片集成分布式反馈（DFB）激光二极管（LD）与光频率梳的同时注入锁定是一种在实时相干无线链路中基于光子的载波信号生成的可行技术。通过对两个注入锁定的DFB LD进行异质性生成而产生的载波信号相位足够稳定，可以在没有激活的情况下实现-波段（75-110 GHz）的10 Gb / s无差错（误码率）相干无线传输。发射机侧的相位稳定和接收机侧的数字信号处理。与直接检测方案相比，使用相干检测可以显示出17 dB的灵敏度提高。这些结果为开发基于最新InP光子集成电路技术的紧凑且经济高效的相干光子无线发射器开辟了道路，与基于电子的发射器相比，该技术具有更宽的带宽。

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