Simultaneous PMD and OSNR monitoring by enhanced RF spectral dip analysis assisted with a local large-DGD element
- 21 November 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 17 (12), 2790-2792
- https://doi.org/10.1109/lpt.2005.859162
Abstract
In this letter, we propose and experimentally demonstrate an enhanced radio-frequency (RF) spectrum analysis technique to simultaneously monitor optical signal-to-noise ratio (OSNR) and polarization-mode dispersion (PMD) for return-to-zero ON- OFF keying (RZ-OOK) systems. In this method, by cascading a large differential group delay element at the monitoring module, the PMD and OSNR parameters can be derived from the analysis of the position shift and the minimum power of the RF spectral dip, respectively. Experimental results show that this scheme can monitor PMD from 0 to 90 ps with less than 2-ps error and OSNR from 16 to 35 dB with less than 1-dB error in a 10-Gb/s RZ-OOK transmission system with a pulsewidth of 2.5 ps. The scheme possesses the advantages of simple implementation, large monitoring range, and high PMD monitoring sensitivity by using the RF spectrum analysis only at low-frequency range.Keywords
This publication has 7 references indexed in Scilit:
- PMD Monitoring by Tracking the Chromatic-Dispersion-Insensitive RF Power of the Vestigial SidebandIEEE Photonics Technology Letters, 2004
- Monitoring and Control of Polarization-Related Impairments in Optical Fiber SystemsJournal of Lightwave Technology, 2004
- Optical Performance MonitoringJournal of Lightwave Technology, 2004
- Performance Monitoring in Optical Networks Using Stokes ParametersIEEE Photonics Technology Letters, 2004
- Polarization-mode dispersion sensitivity and monitoring in 40-Gbit/s OTDM and 10-Gbit/s NRZ transmission experimentsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- OSNR monitoring technique based on orthogonal delayed-homodyne methodIEEE Photonics Technology Letters, 2002
- Emulator of first- and second-order polarization-mode dispersionIEEE Photonics Technology Letters, 2002