Title :
Performance of two-level PAM and analogue PWM hybrid optical fiber transmission systems
Author :
Zhang, Jian-Guo ; Kaewnin, Meathee
Author_Institution :
Telecommun. Program, Asian Inst. of Technol., Bangkok, Thailand
fDate :
8/1/1996 12:00:00 AM
Abstract :
We analyze the performance of optical fiber transmission systems using a 2-level pulse amplitude modulation (PAM) and analogue pulse width modulation (PWM) hybrid technique. The system performance is evaluated by considering the signal-to-noise ratio (SNR) of 50 dB for video communications and the bit error rate (BER) of 10-9 for digital communications as a lower bound. Optical receivers using both avalanche photodiode (APD) and PIN photodiode are considered. The minimum average optical power, which is required by an analogue-PWM signal to guarantee the 50-dB SNR at an optical receiver, is calculated, while the receiver sensitivity is analyzed for a 2-level PAM digital optical fiber system. The results show that the proposed system can perform better than the required lower bound
Keywords :
avalanche photodiodes; cable television; digital communication; error statistics; optical fibre networks; optical modulation; optical receivers; p-i-n photodiodes; pulse amplitude modulation; pulse width modulation; visual communication; 2-level PAM digital optical fiber system; 2-level pulse amplitude modulation; 50 dB; APD; PIN photodiode; SNR; analogue PWM signal; analogue pulse width modulation; avalanche photodiode; bit error rate; digital communications; hybrid optical fiber transmission systems; lower bound; minimum average optical power; optical receivers; performance analysis; receiver sensitivity; signal to noise ratio; system performance; video communications; Amplitude modulation; Bit error rate; Optical fibers; Optical pulses; Optical receivers; Performance analysis; Pulse width modulation; Signal to noise ratio; Space vector pulse width modulation; System performance;
Journal_Title :
Consumer Electronics, IEEE Transactions on
