12 bits/s/Hz Spectral Efficiency Over the C-band Based on Comb-Based Superchannels
Journal article, 2018

We present transmission of three 50×24 Gbaud PM-256QAM superchannels with an overall spectral efficiency of 12 bits/s/Hz over the entire C-band. Each comb-based superchannel combines a single shared optical pilot tone with a low-overhead pilot-based DSP. The pilot tone is used to lock the transmitter and the receiver comb seed lasers, suppressing carrier offsets. Combined with optimized insertion ratio of the digital pilot symbols, the total overhead is minimized, avoiding any excess loss in spectral efficiency. Our results demonstrate the feasibility to exploit the unique properties of frequency combs in the design of high spectral efficiency multi-Tb/s superchannels.

Author

Mikael Mazur

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Jochen Schröder

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Abel Lorences Riesgo

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Tsuyoshi Yoshida

Chalmers, Microtechnology and Nanoscience (MC2)

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Journal of Lightwave Technology

0733-8724 (ISSN)

Technologies for spatial-division multiplexing: The next frontier in optical communications

Swedish Research Council (VR), 2015-01-01 -- 2018-12-31.

Areas of Advance

Information and Communication Technology

Subject Categories

Telecommunications

Atom and Molecular Physics and Optics

Signal Processing

DOI

10.1109/JLT.2018.2880249

More information

Latest update

3/27/2019