Simulation study of BER and signal-to-noise ratio of multichannel optical subcarrier modulated QAM-VDSL signals

Vinod A. Lalithambika; Fu-Chuan Lin; David M. Holburn; Robert J. Mears; Chak H. Hum; Stuart D. Walker

doi:10.1117/12.520489

7 May 2004 Simulation study of BER and signal-to-noise ratio of multichannel optical subcarrier modulated QAM-VDSL signals

Vinod A. Lalithambika, Fu-Chuan Lin, David M. Holburn, Robert J. Mears, Chak H. Hum, Stuart D. Walker

Author Affiliations +

Proceedings Volume 5281, Optical Transmission, Switching, and Subsystems; (2004) https://doi.org/10.1117/12.520489
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

This work is a part of the project entitled Optical Access Key featuring Low-Power Electronic Adaptive Function (OAKLEAF). A partnership has been formed between the Universities of Cambridge and Essex that aims to build on existing research and has two thrusts; verify that VDSL modem compensation techniques can include impairments present in a complete link comprising optoelectronic, radio and copper media components and to produce a demonstrator showing ho VCSEL-based bandpass modulators may offer an effective interface for hybrid xDSL/optoelectronic access networks. In order to analyze and assess the effect of VCSEL non-linearities in a bandpass modulation context a simulation study has been carried out on an 8-channel optical sub-carrier modulated QAM-VDSL system. Also, a new integrated circuit functional block, a combiner and laser driver with predistortion circuit has been designed and simulated to compensate for the non-linearities of the VCSEL.

Citation Download Citation

Vinod A. Lalithambika, Fu-Chuan Lin, David M. Holburn, Robert J. Mears, Chak H. Hum, and Stuart D. Walker "Simulation study of BER and signal-to-noise ratio of multichannel optical subcarrier modulated QAM-VDSL signals", Proc. SPIE 5281, Optical Transmission, Switching, and Subsystems, (7 May 2004); https://doi.org/10.1117/12.520489

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