Demonstration of Few-Mode Compatible Optical Add/Drop Multiplexer for Mode-Division Multiplexed Superchannel

作者：Chen Xi^*; Li An; Ye Jia; Al Amin Abdullah; Shieh William

来源：Journal of Lightwave Technology, 2013, 31(4): 641-647.

DOI：10.1109/JLT.2012.2225409

• Coherent optical OFDM
• few-mode fiber (FMF)
• optical add/drop multiplexer (OADM)
• mode-division multi-plexing (MDM)

Few-mode fiber (FMF) compatible optical add/drop multiplexer (OADM) is indispensable for the future flexible high-speed mode-division multiplexed (MDM) optical networks. In this paper, we demonstrate a proof of concept of FMF compatible OADM which enables add/drop functionality for MDM superchannels. The OADM consists of two cascaded free-space thin-film filters with 5 degrees incident angle. We demonstrate the rerouting of 3 x 318 Gb/s MDM CO-OFDM superchannels via the proposed OADM. The experimental results show 2.6, 2.4, and 0.7 dB OSNR penalties for add, drop, and through ports, respectively. Additionally, we demonstrate a heterodyne receiver configuration which can handle multiband detection without incurring penalty of spectral efficiency.

• 出版日期2013-2-15
• 单位西南交通大学