Reception of Dual-LP11-Mode CO-OFDM Signals through Few-mode Compatible Optical Add/Drop Multiplexer

Abstract
We report successful reception of dual-LP11-mode CO-OFDM signals traversing few-mode compatible optical add/drop multiplexer (OADM). The power penalties for add, drop and through ports are 2.6, 2.4, 0.7 dB, respectively for 3x318 Gb/s OFDM signals.