Application Research of CRZ-4PAM Optical Access Signals-Reference-Cited by-同舟云学术

Application Research of CRZ-4PAM Optical Access Signals

Published:2022-12-03 Issue: Volume:23 Page:54-57
ISSN:2791-0210
Container-title:Highlights in Science, Engineering and Technology
language:
Short-container-title:HSET

Author:

Chen Fuping

Abstract

In this paper, the generation and transmission of chirped return-to-zero 4-ary pulse amplitude modulation (CRZ-4PAM) signals in passive optical networks (PONs) is proposed and investigated. The optical spectra, time-domain phase and chirp change diagrams of CRZ-4PAM signals are measured, and their eye-diagrams before and after transmission are also analyzed. We demonstrate that CRZ-4PAM signals after transmission over 20km single mode fiber (SMF) at 10Gb/s can be directly detected by using one photo detector, and the original data can also be restored by one M-ary threshold detector and one PAM sequence decoder. The results demonstrate that CRZ-4PAM downlink signals can be received effectively at the BER value of 10-6, and exhibits 2.4 dB receiver power penalty compared with the back to back case.

Publisher

Darcy & Roy Press Co. Ltd.

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