4-Pulsed Amplitude Modulation Optical Downlink Signals Reception in Optical Access Systems Using Different Bandwidth Optical Bessel Filter

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Important Dates

Conference:

Aug. 18-20, 2018

Full Paper Due: Jul. 20, 2018

Abstract Due: Jul. 20, 2018

Audience Registration Due:
Aug. 18, 2018

Presentations of The Int'l Symposium on Photonics and Optoelectronics (SOPO 2016)

● 4-Pulsed Amplitude Modulation Optical Downlink Signals Reception in Optical Access Systems Using Different Bandwidth Optical Bessel Filter
Author(s)
Fuping Chen
Affiliation(s)
College of Electronic and Information Engineering,Chongqing Three Gorges Univers
KEYWORDS
4-Pulsed Amplitude, Optical Access Systems
ABSTRACT
A novel scheme which can realize high-speed optical signals transmission and reception by using 4-pulsed amplitude modulation (4-PAM) and demodulation in 10Gb/s passive optical access systems with different bandwidth optical Bessel filter (OBF), is introduced. In this scheme, a PAM sequence generator module, a M-ary pulse generator module and one Mach-Zehnder intensity Modulator(MZM) are employed for generating the 10Gb/s optical 4-PAM signals. And then, the generated optical 4-PAM signal is achieved transmission over 20km single mode fiber (SMF) for downstream(DS) access links application. Finally, the optical 4-PAM signal after transmission is directly detected and demodulated. We measure time-domain sequential waveform curves, optical spectrum curves, and eye-diagrams,and analyze the receiver sensitivity of 10Gb/s 4-PAM signals before and after transmission. The received performance of the optical 4-PAM signals after transmission over 20km single mode fiber (SMF) with different bandwidth OBF has been also analyzed.