Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system
We present a laser phase noise (PN) induced effect of a phase-modulation-to-intensity-modulation conversion noise and noise pedestals underneath each of the orthogonal frequency division multiplexing (OFDM) subcarriers in a selfcoherent optical OFDM transmission using a self-homodyne technique. We p...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Optical Society of America Publishing
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/74823/ http://psasir.upm.edu.my/id/eprint/74823/1/Laser%20phase%20noise.pdf |
| _version_ | 1848857559652368384 |
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| author | Ali Mandalawi, Younus Nidham Yaakob, Syamsuri Wan Adnan, Wan Azizun Yaacob, Mohd Hanif Zan, Zuraidah |
| author_facet | Ali Mandalawi, Younus Nidham Yaakob, Syamsuri Wan Adnan, Wan Azizun Yaacob, Mohd Hanif Zan, Zuraidah |
| author_sort | Ali Mandalawi, Younus Nidham |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We present a laser phase noise (PN) induced effect of a phase-modulation-to-intensity-modulation conversion noise and noise pedestals underneath each of the orthogonal frequency division multiplexing (OFDM) subcarriers in a selfcoherent optical OFDM transmission using a self-homodyne technique. We provide a statistical analysis on the received symbols using a histogram to demonstrate the effect of a phase rotation term and inter-subcarrier interference individually and collectively. The PN is then compensated using a simple time delay to realign the phase walk-off of the subcarriers relative to the carrier. Significant quadrature improvements of 6.82 dB using 5 MHz laser linewidth over a 720 km transmission length and 5.38 dB using 20 MHz over 240 km have been obtained with 16 quadrature amplitude modulation (QAM) over 15 GHz OFDM signal bandwidth. The technique also significantly reduced an optical-signal-to-noise ratio requirement at the bit error rate of 1 × 10−3 by 16.15 dB for 64-QAM over 160 km. With the delay, the system can tolerate three times the chromatic dispersion-length product. |
| first_indexed | 2025-11-15T11:59:29Z |
| format | Article |
| id | upm-74823 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T11:59:29Z |
| publishDate | 2018 |
| publisher | Optical Society of America Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-748232020-03-17T08:11:05Z http://psasir.upm.edu.my/id/eprint/74823/ Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system Ali Mandalawi, Younus Nidham Yaakob, Syamsuri Wan Adnan, Wan Azizun Yaacob, Mohd Hanif Zan, Zuraidah We present a laser phase noise (PN) induced effect of a phase-modulation-to-intensity-modulation conversion noise and noise pedestals underneath each of the orthogonal frequency division multiplexing (OFDM) subcarriers in a selfcoherent optical OFDM transmission using a self-homodyne technique. We provide a statistical analysis on the received symbols using a histogram to demonstrate the effect of a phase rotation term and inter-subcarrier interference individually and collectively. The PN is then compensated using a simple time delay to realign the phase walk-off of the subcarriers relative to the carrier. Significant quadrature improvements of 6.82 dB using 5 MHz laser linewidth over a 720 km transmission length and 5.38 dB using 20 MHz over 240 km have been obtained with 16 quadrature amplitude modulation (QAM) over 15 GHz OFDM signal bandwidth. The technique also significantly reduced an optical-signal-to-noise ratio requirement at the bit error rate of 1 × 10−3 by 16.15 dB for 64-QAM over 160 km. With the delay, the system can tolerate three times the chromatic dispersion-length product. Optical Society of America Publishing 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/74823/1/Laser%20phase%20noise.pdf Ali Mandalawi, Younus Nidham and Yaakob, Syamsuri and Wan Adnan, Wan Azizun and Yaacob, Mohd Hanif and Zan, Zuraidah (2018) Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system. Optics Letters, 44 (2). pp. 307-310. ISSN 0146-9592, ESSN: 1539-4794 10.1364/OL.44.000307 |
| spellingShingle | Ali Mandalawi, Younus Nidham Yaakob, Syamsuri Wan Adnan, Wan Azizun Yaacob, Mohd Hanif Zan, Zuraidah Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title | Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title_full | Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title_fullStr | Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title_full_unstemmed | Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title_short | Laser phase noise effect and reduction in self- homodyne optical OFDM transmission system |
| title_sort | laser phase noise effect and reduction in self- homodyne optical ofdm transmission system |
| url | http://psasir.upm.edu.my/id/eprint/74823/ http://psasir.upm.edu.my/id/eprint/74823/ http://psasir.upm.edu.my/id/eprint/74823/1/Laser%20phase%20noise.pdf |