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首页> 外文期刊>Proceedings of the IEEE >Comments, with reply, on 'Performance of coherent optical receivers' by J.R. Barry and E.A. Lee
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Comments, with reply, on 'Performance of coherent optical receivers' by J.R. Barry and E.A. Lee

机译:J.R. Barry和E.A.对“相干光接收器的性能”的评论和答复。背风处

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摘要

The commenter shows how nonzero extinction ratios affect the performance of an otherwise ideal on-off keyed (OOK) communication system. In their reply, J.R. Barry and E.A. Lee point out that by using these results, experimenters will be able to state accurately what fraction of their sensitivity deviation from the ideal quantum limit is due to the nonzero extinction ratio. The ideal ten-photon quantum limit for OOK measures the number of photons per bit required by an ideal system-including the transmitter and channel, and not just the detector-to achieve a BER of 10/sup -9/. Barry and Lee agree with the commenter that it is not a useful benchmark for detectors alone; it is, however, a useful benchmark for the entire system.
机译:评论者展示了非零消光比如何影响原本理想的开关键控(OOK)通信系统的性能。 J.R. Barry和E.A.在回信中Lee指出,通过使用这些结果,实验者将能够准确地说明其灵敏性偏离理想量子极限的比例是由非零消光比引起的。 OOK的理想十光子量子极限可测量理想系统(包括发射器和通道,而不仅仅是检测器)每位所需的光子数量,以实现BER为10 / sup -9 /。巴里(Barry)和李(Lee)同意评论者的意见,认为这并不是仅对探测器有用的基准;但是,它是整个系统的有用基准。

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