Frontiers of Optoelectronics, 2014, 7 (3): 399–405, 网络出版: 2014-12-08  

Chromatic dispersion monitoring using semiconductor optical amplifier

Chromatic dispersion monitoring using semiconductor optical amplifier
作者单位
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
摘要
Abstract
An all-optical real-time chromatic dispersion (CD) monitoring technique is proposed and demonstrated for 40 Gbit/s differential phase-shifts keying (DPSK) signal, utilizing the cross modulation effects of semiconductor optical amplifier (SOA). The optical power of the output spectral components, which is from the probe’s frequency up to the signal bandwidth, is used for CD monitoring. This technique provides a wide monitoring range with large variation scale. The impacts of the polarization mode dispersion (PMD) and the optical signal-to-noise ratio (OSNR) on the CD monitoring results are theoretically analyzed and then experimentally investigated, showing that they have slight influence on the monitoring results within a certain range. Furthermore, simulated results for quadrature phase shift keying (QPSK) signal at 80 Gbit/s are also demonstrated, indicating that this technique is suitable for advanced modulated format as well.

Zhao WU, Yu YU, Xinliang ZHANG. Chromatic dispersion monitoring using semiconductor optical amplifier[J]. Frontiers of Optoelectronics, 2014, 7(3): 399–405. Zhao WU, Yu YU, Xinliang ZHANG. Chromatic dispersion monitoring using semiconductor optical amplifier[J]. Frontiers of Optoelectronics, 2014, 7(3): 399–405.

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