Direct phase modulation of a DFB laser for udWDM-PON

The response of a DFB was equalized with a simple RC network for modulating directly its phase and producing a BPSK signal. The system was tested with a heterodyne coherent detector at 1.25 Gb/s and 2.5 Gb/s showing a sensitivity penalty of around 1dB when compared with external phase modulation. Th...

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Published inInternational Conference on Transparent Optical Networks (Print) pp. 1 - 4
Main Authors Cano, Ivan N., Lerin, Adolfo, Polo, Victor, Prat, Josep
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2014
Subjects
Bit error rate
DFB
direct phase modulation
heterodyne
Optical fibers
Optical mixing
Optical network units
Passive optical networks
Phase modulation
PON
PSK
udWDM
Online AccessGet full text
ISSN2162-7339
DOI10.1109/ICTON.2014.6876281

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Abstract The response of a DFB was equalized with a simple RC network for modulating directly its phase and producing a BPSK signal. The system was tested with a heterodyne coherent detector at 1.25 Gb/s and 2.5 Gb/s showing a sensitivity penalty of around 1dB when compared with external phase modulation. The results indicate that the technique could be considered as a reliable low-cost ONU transmitter solution in udWDM-PONs.
AbstractList The response of a DFB was equalized with a simple RC network for modulating directly its phase and producing a BPSK signal. The system was tested with a heterodyne coherent detector at 1.25 Gb/s and 2.5 Gb/s showing a sensitivity penalty of around 1dB when compared with external phase modulation. The results indicate that the technique could be considered as a reliable low-cost ONU transmitter solution in udWDM-PONs.
Author Polo, Victor
Lerin, Adolfo
Prat, Josep
Cano, Ivan N.
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  fullname: Polo, Victor
  organization: Univ. Politec. de Catalunya, Barcelona, Spain
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  givenname: Josep
  surname: Prat
  fullname: Prat, Josep
  organization: Univ. Politec. de Catalunya, Barcelona, Spain
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Snippet The response of a DFB was equalized with a simple RC network for modulating directly its phase and producing a BPSK signal. The system was tested with a...
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StartPage 1
SubjectTerms Bit error rate
DFB
direct phase modulation
heterodyne
Optical fibers
Optical mixing
Optical network units
Passive optical networks
Phase modulation
PON
PSK
udWDM
Title Direct phase modulation of a DFB laser for udWDM-PON
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