Title :
Nonlinearity-tolerant OSNR estimation technique for coherent optical systems
Author :
Choi, H.G. ; Chang, J.H. ; Hoon Kim ; Chung, Y.C.
Author_Institution :
Dept. of Electr. Eng., KAIST, Daejeon, South Korea
Abstract :
We demonstrate a novel technique capable of accurately monitoring OSNR even under the influences of fiber nonlinearities. We show that this technique can monitor the OSNR of 112-Gb/s PDM-QPSK signals with accuracy of 1.3 dB.
Keywords :
optical Kerr effect; optical fibre networks; optical fibres; optical noise; optical receivers; quadrature phase shift keying; telecommunication channels; wavelength division multiplexing; PDM-QPSK signals; bit rate 112 Gbit/s; coherent optical systems; fiber nonlinearities; nonlinearity-tolerant OSNR estimation technique; optical receiver; optical signal-to-noise ratio; polarization-division-multiplexed quadrature phase-shift keying; wavelength division multiplexin; Correlation; Monitoring; Optical fiber networks; Optical fiber polarization; Optical noise; Signal to noise ratio; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
