Coherent Optical Phase-Modulation Link
Coherent Optical Phase-Modulation Link
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DOI：
10.1109/lpt.2007.901702
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发表时间：
2007-07
影响因子：
2.6
通讯作者：
T. Clark;M. Dennis
中科院分区：
文献类型：
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作者：
T. Clark;M. Dennis
我们展示和表征了一类新的射频(RF)-光子链路用于模拟RF信号的线性传输。数字域的线性相位解调采用光同相和正交相信号的同时分离检测和数字化。这表明，允许显着更大的容忍不完美的物理实现的相位解调接收机。在我们的基带演示中观察到数字化仪限制的无杂散动态范围改善bbb12dbldrhz2 /3。调制深度明显超过单位是允许和演示。
We demonstrate and characterize a new class of radio-frequency (RF)-photonic link for the linear transport of analog RF signals. Simultaneous and separate detection and digitization of optical in-phase and quadrature-phase signals is employed for linear phase demodulation in the digital domain. This is shown to allow significantly larger tolerance to imperfect physical implementation of the phase demodulating receiver. Digitizer-limited spur-free dynamic range improvement >12 dBldrHz2/3 is observed in our baseband demonstration. Modulation depths significantly exceeding unity are allowed and demonstrated.