title: Simultaneous monitoring technique for ASE and MPI noises in distributed Raman Amplified Systems.
abstract: We develop a new technique for simultaneously monitoring the amplified spontaneous emission (ASE) and multi-path interference (MPI) noises in distributed Raman amplified (DRA) systems. This technique utilizes the facts that the degree-of polarization (DOP) of the MPI noise is 1/9, while the ASE noise is unpolarized. The results show that the proposed technique can accurately monitor both of these noises regardless of the bit rates, modulation formats, and optical signal-to-noise ratio (OSNR) levels of the signals.
authors: H Y
authors: HY
authors: Choi
authors: S B
authors: SB
authors: Jun
authors: S K
authors: SK
authors: Shin
authors: Y C
authors: YC
authors: Chung