Optimization of spectral band utilization in gridless WDM optical network

Indayara B. Martins; Ivan Aldaya; G. Perez-Sanchez; Philippe Gallion

doi:10.1117/12.2041229

19 February 2014 Optimization of spectral band utilization in gridless WDM optical network

Indayara B. Martins, Ivan Aldaya, G. Perez-Sanchez, Philippe Gallion

Proceedings Volume 9010, Next-Generation Optical Networks for Data Centers and Short-Reach Links; 90100K (2014) https://doi.org/10.1117/12.2041229
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

In this paper, the effects of gridless spectrum allocation in Wavelength Division Multiplexed (WDM) optical networks are examined. The advanced modulation formats and multi-rate transmissions of the signals, which are key parameters in the optical system project, are taken into account. The consumed spectrum, as well as the impact of linear and nonlinear impairments on the signal transmission, are compared to WDM network adopting standard grid and gridless ITU. To analyze the influence of these physical effects, some key network design parameters are monitored and evaluated, such as the guard band size, the signal occupied bandwidth, the laser power and the quality of channels. The applied signal modulation formats were On/Off Keying (OOK), Quadrature Phase Shift keying (QPSK), and Dual Polarization State Phase Modulation (DP-QPSK), whereas the transmission rate per wavelength was varied from 10 Gb/s to 100Ghz. The guard band, signal band, and laser power were swept and the resulted Bit Error Rate (BER) was estimated from the eye-diagram. Analytical calculations and simulations are conducted in order to evaluate the impact of the gridless spectrum allocation on both the spectral consumption and the signal quality of transmission (QoT). Results reveal that a gridless transmission system reduces the spectral consumption while offering an acceptable QoT. This work was carried out with both analytical modeling and numerical calculation using the Optisystem as well as Matlab.

Citation Download Citation

Indayara B. Martins, Ivan Aldaya, G. Perez-Sanchez, and Philippe Gallion "Optimization of spectral band utilization in gridless WDM optical network", Proc. SPIE 9010, Next-Generation Optical Networks for Data Centers and Short-Reach Links, 90100K (19 February 2014); https://doi.org/10.1117/12.2041229

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available