Title :
Nonlinear Raman crosstalk in a 125-Mb/s CWDM overlay on a 1310-nm video access network
Author :
Piehler, D. ; Meyrueix, P. ; Rishi, G. ; Chen, L.P. ; Coppinger, F.
Author_Institution :
Broadband Access Networks, Harmonic, Inc., Sunnyvale, CA, USA
Abstract :
Repeated idle frames from a 125 Mb/s line-rate fast Ethernet optical link generate a signal with RF spectral content peaked at 62.5 MHz and at its harmonics. We show, experimentally, that this modulation can be transferred from CWDM wavelengths (1430, 1450, 1470 nm...) to an analog video signal at 1310 nm via stimulated Raman crosstalk when the signals are co-propagating. However, no penalty is observed when the signals are counter propagating making CWDM overlay a viable solution to add services on a 1310 video access network.
Keywords :
Raman spectra; hybrid fibre coax networks; local area networks; optical crosstalk; optical fibre subscriber loops; radiofrequency spectra; wavelength division multiplexing; 125 Mbit/s; 1310 nm; 1430 nm; 1450 nm; 1470 nm; 62.5 MHz; CWDM; RF spectral content; counter propagation; fast Ethernet optical link; idle frames; nonlinear Raman crosstalk; signal generation; video access network;
Conference_Titel :
Optical Fiber Communication Conference, 2004. OFC 2004
Print_ISBN :
1-55752-772-5
