Title :
In-band OSNR monitor based on Mach Zehnder DLI interferometer for polarization multiplexed signals
Author :
Januario, Joao C. S. S. ; Carvalho, Heitor S. ; de Oliveira, J.R.F. ; de Oliveira, Julio C. R. F. ; Hernandez-Figueroa, Hugo E.
Author_Institution :
Convergence Networks Dept., CPqD - Found., Campinas, Brazil
Abstract :
An in-band optical signal to noise ratio (OSNR) monitoring method was proposed for polarization multiplexed signals, but it is also applicable for signals modulated with only one polarization. This proposed method is based on Mach Zehnder delay line interferometer (MZ-DLI) and a simple calibration procedure, it is insensitive to CD and first order PMD effects and allows an estimated error less than 1.0 dB, 25 dB of estimated OSNR range and 30 dB of total input power range for 10G-OOK, 112G-DP-QPSK and 224G-DP-16QAM modulation formats.
Keywords :
Mach-Zehnder interferometers; amplitude shift keying; calibration; optical delay lines; optical dispersion; optical modulation; optical noise; quadrature amplitude modulation; quadrature phase shift keying; wavelength division multiplexing; 10G-OOK modulation; 112G-DP-QPSK modulation; 224G-DP-16QAM modulation; Mach Zehnder DLI interferometer; Mach Zehnder delay line interferometer; PMD effects; calibration; chromatic dispersion; in-band OSNR monitor; in-band optical signal to noise ratio; polarization multiplexed signals; signal modulation; Erbium-doped fiber amplifiers; Monitoring; Optical noise; Optical polarization; Optical switches; Signal to noise ratio; In-band OSNR; Mach Zehnder Interferometer; Optical Performance; Polarization Multiplexed Signals;
Conference_Titel :
Microwave & Optoelectronics Conference (IMOC), 2013 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
DOI :
10.1109/IMOC.2013.6646451
