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A hybrid analogue/digital optical fiber transmission system using pulse width and amplitude modulation

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3 Author(s)
Jian-Gao Zhang ; Telecommun. Program, Asian Inst. of Technol., Bangkok, Thailand ; Sharma, A.B. ; Kaewnin, M.

We present the principle and design of a cost-effective optical fiber communication system to support hybrid digital and analogue signal transmissions, by simultaneously using pulse width modulation (PWM) for the analogue signal and 2-level pulse amplitude modulation for the digital signal. A transmission system using the proposed pulse width and amplitude modulation (PWAM) essentially requires the same channel bandwidth as a conventional analogue PWM system. Moreover, we analyze the performance of PWAM optical fiber systems by considering the signal-to-noise ratio of 50 dB for video communications and the bit error rate of 10-9 for digital communications

Published in:

Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE  (Volume:2 )

Date of Conference:

1998