Dynamic range of coherent analog fiber-optic links
Dynamic range of coherent analog fiber-optic links
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相干模拟光纤链路的动态范围
DOI：
10.1109/50.301820
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发表时间：
1994
影响因子：
4.7
通讯作者：
L. Kazovsky
中科院分区：
文献类型：
--
作者：
R. Kalman;Jason C. Fan;L. Kazovsky
我们研究了采用幅度调制（AM）、相位调制（PM）和频率调制（FM）的相干模拟光链路的性能。这些相干链路的性能相比，AM直接检测（DD）的链接。对上述链路的信噪比、非线性和无杂散动态范围（SFDR）进行了评估。我们计算的SFDR的链接使用DFB和Nd：YAG激光器的典型线宽为10 MHz和5 kHz，分别。PM和FM链路的性能由高于接收光功率的临界值的相位噪声支配。对于10 MHz的线宽，PM和FM链路的SFDR分别为30和31 dB，在1 GHz带宽中接收光功率高于-27 dBm。对于5 kHz的线宽，高于0 dBm接收功率电平的相应SFDR分别为51和53 dB。DD和AM链路的性能由高于接收光功率的临界值的RIN支配。对于-155 dB/Hz的RIN电平，DD和AM链路的SFDR分别为49和47 dB，接收光功率为10 dBm，带宽为1 GHz。用于传输副载波复用（SCM）信号的DD和相干链路的无杂散动态范围的推导。我们评估了许多不同应用所需的目标激光参数。对于AM视频和天线遥控应用，线宽>
We investigate the performance of coherent analog optical links employing amplitude modulation (AM), phase modulation (PM), and frequency modulation (FM). The performance of these coherent links is compared to that of AM direct-detection (DD) links. The signal-to-noise ratios, nonlinearities, and-spurious-free dynamic ranges (SFDR's) of the foregoing links are evaluated. We calculate the SFDR for links using DFB and Nd:YAG lasers with typical linewidths of 10 MHz and 5 kHz, respectively. The performance of PM and FM links is dominated by phase noise above a critical value of received optical power. For a linewidth of 10 MHz, and SFDR's of PM and FM links are 30 and 31 dB, respectively, for a received optical power above -27 dBm in a 1 GHz bandwidth. For a linewidth of 5 kHz, the corresponding SFDR's above a received power level of 0 dBm are 51 and 53 dB. The performance of DD and AM links is dominated by RIN above a critical value of received optical power. For a RIN level of -155 dB/Hz, the SFDR's of DD and AM links are 49 and 47 dB, respectively, for a received optical power of 10 dBm in a 1 GHz bandwidth. The SFDR's of the DD and coherent links used for transmission of subcarrier-multiplexed (SCM) signals are also derived. We evaluate target laser parameters needed by a number of different applications. For AM video and antenna remoting applications, linewidths of >