Optical single-sideband modulator for broad-band subcarrier multiplexing systems
Optical single-sideband modulator for broad-band subcarrier multiplexing systems
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DOI：
10.1109/lpt.2002.806855
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发表时间：
2003-01
影响因子：
2.6
通讯作者：
A. Loayssa;C. Lim;A. Nirmalathas;D. Benito
中科院分区：
文献类型：
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作者：
A. Loayssa;C. Lim;A. Nirmalathas;D. Benito
我们通过实验证明了一种用于副载波复用（SCM）系统的增强型光单边带（OSSB）调制器，该调制器在不增加所传输的射频信号的二阶或三阶非线性失真的情况下提供了输出光调制深度的改善。该调制器部署在SCM链路中，传送4 /spl倍/ 622 Mb/s调制子载波，与使用双电极OSSB调制器设计相比，误码率提高了五个数量级。此外，最坏情况下的信道的色散损失被降低到小于1.7 dB。
We experimentally demonstrate an enhanced optical single-sideband (OSSB) modulator for subcarrier-multiplexing (SCM) systems that provides improvement of the output optical modulation depth without increasing either the second-order or the third-order nonlinear distortion of the transmitted radio frequency signal. The modulator is deployed in an SCM link conveying 4 /spl times/ 622-Mb/s modulated subcarriers, demonstrating an enhancement of five orders of magnitude in bit error rate compared to the use of a dual-electrode OSSB modulator design. In addition, the dispersion penalty for the worst-case channel is reduced to less than 1.7 dB.