Phase Noise Characterization and EEPN of a Full C-Band Tunable Laser in Coherent Optical Systems
Journal article, 2019

We perform phase noise characterization of a tunable laser source that is capable of tuning to 103 channels between 1527.6-1568.36 nm with 50 GHz grid spacing between the channels. The measured frequency modulation (FM) noise power spectral density (PSD) is reproduced by simulations in order to investigate the impact of equalization-enhanced phase noise (EEPN) in a coherent transmission system. The simulations are performed on a 30 Gbaud channel with 16 quadrature amplitude modulation (16QAM) and using pilot-based carrier phase estimation with 3% overhead. By performing extensive system simulations, we show the impact of different accumulated dispersion. Furthermore, we show the possibility to overcome EEPN related penalties by using a local oscillator (LO) with reduced low frequency phase noise or flat FM-noise PSD profiles with lower linewidths. © 1989-2012 IEEE.

equalization-enhanced phase noise

tunable laser source

FM-noise power spectral density

coherent systems

laser phase noise

Author

Diego Rodrigo Villafani Caballero

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Ali Mirani

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Xiaodan Pang

Infinera Metro HW

Edgard Goobar

Finisar Sweden AB

Jochen Schröder

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

IEEE Photonics Technology Letters

1041-1135 (ISSN)

Vol. 31 24 1991-1994 8895890

Subject Categories

Telecommunications

Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/LPT.2019.2952816

More information

Latest update

1/20/2020