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Title: Chirp and frequency offset tolerant coherent burst-mode receiver using directly modulated DFB lasers for coherent PON systems
Authors: Huang, D
Lau, APT
Cheng, TH
Lu, C
Yan, S
Zhou, L
Keywords: Burst mode receiver
Directly-modulated laser
Frequency chirp
Passive optical network
Issue Date: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: 2014 13th International Conference on Optical Communications and Networks, ICOCN 2014, 2014, 6987121 How to cite?
Abstract: Burst-mode receiver (BMR) is one of the key components in passive optical networks (PONs). When directly-modulated distribution feedback (DFB) lasers are used as transmitter source, the BMR needs to take additional measures to compensate the effects of the laser frequency chirp. In this paper, we design a coherent optical BMR for a directly-modulated DFB laser source with On-Off Keying (OOK) modulation. We show that by increasing the bandwidth of the low-pass filter (LPF) before analog-to-digital converter (ADC), we can receive signal almost unaffected by frequency chirp and frequency offset. By using coherent detection, we can increase the receiver sensitivity thus enlarge the signal transmission distance.
Description: 2014 13th International Conference on Optical Communications and Networks, ICOCN 2014, Suzhou, 9-10 November 2014
ISBN: 9781479972180
DOI: 10.1109/ICOCN.2014.6987121
Appears in Collections:Conference Paper

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