eprintid: 45890
rev_number: 13
eprint_status: archive
userid: 2101
dir: disk0/00/04/58/90
datestamp: 2017-05-14 07:33:06
lastmod: 2019-06-04 13:04:19
status_changed: 2019-06-04 13:04:19
type: article
metadata_visibility: show
creators_name: Chen, Xiaoyong
creators_name: Martín Pereda, José Antonio
creators_name: Rodríguez Horche, Paloma
title: Signal penalties induced by different types of optical filters in 100 Gbps PM-DQPSK based optical networks
publisher: Elsevier
rights: by-nc-nd
ispublished: pub
subjects: telecomunicaciones
full_text_status: public
keywords: Optical filter; 
Optical crosstalk; 
Signal impairment; 
Optical communication; 
Polarization multiplexed differential quadrature phase shift keying (PM-DQPSK)
abstract: Optical filters are crucial elements in optical communication networks. However, they seriously affect the signal quality, especially in the concatenation condition. In this paper, we study and simulate the signal penalties induced by five types of filters, including Butterworth, Gaussian, Bessel, Fiber Bragg Grating (FBG) and Fabry–Perot (F–P) filters, in order to optimize the optical network performance. Signal penalties, including both filter concatenation effect and filter induced in-band and out-band crosstalk, are analyzed by eye opening penalty (EOP) and Q-penalty. Simulation results show that the Butterworth filter performs best among these four types of filters. Total Q-penalty induced by a Butterworth filter-based demultiplexer/multiplexer pair, considering both filter concatenation effect and crosstalk, is lower than 0.5 dB, when the filter bandwidth is in the range of 42–46 GHz. Simulations done in a 100 Gbps PM-DQPSK optical network indicate that the permitted cascaded number is 14 and 10 with respect to the case of filters aligned and misaligned, respectively. Penalties induced by laser frequency shift are investigated and the performance of the 3rd-order Butterworth filter is compared to the 4th-order superGaussian filter. Finally, discussions of optical filter performances, including insertion loss, reconfigurability and programmability, are presented.
date_type: published
date: 2016
publication: Optical Switching and Networking
volume: 19
number: 3
pagerange: 145-154
id_number: 10.1016/j.osn.2015.07.001
institution: Telecomunicacion
department: Tecnologia_fotonica_2014
issn: 1872-9770
official_url: https://www.sciencedirect.com/science/article/pii/S1573427715000429?
citation:   Chen, Xiaoyong and Martín Pereda, José Antonio and Rodríguez Horche, Paloma  (2016).  Signal penalties induced by different types of optical filters in 100 Gbps PM-DQPSK based optical networks.   "Optical Switching and Networking", v. 19  (n. 3);   pp. 145-154.  ISSN 1872-9770.   https://doi.org/10.1016/j.osn.2015.07.001 <https://doi.org/10.1016/j.osn.2015.07.001>. 
document_url: https://oa.upm.es/45890/1/Signal_penalties_induced_by_different_types.pdf