Title :
Demonstration of Few-Mode Compatible Optical Add/Drop Multiplexer for Mode-Division Multiplexed Superchannel
Author :
Xi Chen ; An Li ; Jia Ye ; Al Amin, Abdullah ; Shieh, William
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Melbourne, Melbourne, VIC, Australia
Abstract :
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° incident angle. We demonstrate the rerouting of 3 × 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.
Keywords :
OFDM modulation; multiplexing equipment; optical fibre networks; optical filters; optical receivers; space division multiplexing; spectral analysis; CO-OFDM superchannel; FMF; MDM optical networks; OADM; cascaded free space thin film filter; few mode fiber; heterodyne receiver configuration; mode division multiplexing; multiband detection; optical add-drop multiplexer; spectral efficiency; Arrayed waveguide gratings; Band pass filters; OFDM; Optical fibers; Optical filters; Coherent optical OFDM; few-mode fiber (FMF); mode-division multiplexing (MDM); optical add/drop multiplexer (OADM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2225409
