Dual-wavelength source based optical circuit switching and wavelength reconfiguration in multi-hop ROADM systems

作者：Mo Weiyang^*; Zhu Shengxiang; Li Yao; Kilper Daniel C

来源：Optics Express, 2017, 25(22): 27736-27749.

DOI：10.1364/OE.25.027736

Using a dual-wavelength source, a single optical signal is distributed over two wavelengths. This approach is used to reduce power excursions due to optical circuit switching in ROADM systems. In a multi-hop optical transmission system with 100Gbps PM-QPSK signals switched over five ROADMs and 265 km of single mode fiber (SMF), power excursions are kept within +/- 0.2 dB using dual-wavelength sources. A cumulative distribution CDF) of channel power excursions is generated from measurements of over 100 random channel loadings for four different channel loading plans. Using dual-wavelength sources, power excursions of up to +/- 6 dB are reduced below +/- 1.5 dB for 99% and +/- 0.5 dB for 71.4% of the cases while switching up to 30 channels.

• 出版日期2017-10-30