Laser nonlinearity reduction model using taylor series expansion for free space optical communication system
One primary limitation on the performance of the optical transceiver is the nonlinearity of the laser transmitter, which produces intermodulation distortions and necessitates various compromises between modulation depth, channel spacing and types of modulation scheme, leading to degraded bandwidt...
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| Format: | Book Section |
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Penerbit UTM
2007
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| _version_ | 1796855261623746560 |
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| author | Idrus, Sevia Mahdaliza Maiteeg, Ahmed Bashir Harun, Hilmi |
| author_facet | Idrus, Sevia Mahdaliza Maiteeg, Ahmed Bashir Harun, Hilmi |
| author_sort | Idrus, Sevia Mahdaliza |
| collection | ePrints |
| description | One primary limitation on the performance of the optical transceiver is the nonlinearity of the laser transmitter, which produces intermodulation distortions and necessitates various compromises between modulation depth, channel spacing and types of modulation scheme, leading to degraded bandwidth efficiency. Nonlinearity of a directly modulated laser diode imposes limitations in the performance of the optical communication systems. Many laser linearization techniques involve the use of duplicate lasers or optical modulators, and those, which attempt to create physical structures within the optical modulators, and lasers can obviously increase the cost relative to ordinary optical transmitters. Fundamentally, linearization techniques can be divided into one of the following categories: feedforward, feedback, precorrective distortion. In this chapter a new free space optical link non-linearity correction system has been introduced employing the Feedforward Linearization technique, so called Optical Free Space Feedforward Linearization System (OFFLS). The system was modeled by Taylor series and the results of the simulations have shown a significant reduction in the 3 th and 5 th order intermodulation distortion products (IMD) by 30 dB over 2GHz bandwidth. |
| first_indexed | 2024-03-05T18:26:01Z |
| format | Book Section |
| id | utm.eprints-13553 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T18:26:01Z |
| publishDate | 2007 |
| publisher | Penerbit UTM |
| record_format | dspace |
| spelling | utm.eprints-135532011-08-10T01:18:07Z http://eprints.utm.my/13553/ Laser nonlinearity reduction model using taylor series expansion for free space optical communication system Idrus, Sevia Mahdaliza Maiteeg, Ahmed Bashir Harun, Hilmi TK Electrical engineering. Electronics Nuclear engineering One primary limitation on the performance of the optical transceiver is the nonlinearity of the laser transmitter, which produces intermodulation distortions and necessitates various compromises between modulation depth, channel spacing and types of modulation scheme, leading to degraded bandwidth efficiency. Nonlinearity of a directly modulated laser diode imposes limitations in the performance of the optical communication systems. Many laser linearization techniques involve the use of duplicate lasers or optical modulators, and those, which attempt to create physical structures within the optical modulators, and lasers can obviously increase the cost relative to ordinary optical transmitters. Fundamentally, linearization techniques can be divided into one of the following categories: feedforward, feedback, precorrective distortion. In this chapter a new free space optical link non-linearity correction system has been introduced employing the Feedforward Linearization technique, so called Optical Free Space Feedforward Linearization System (OFFLS). The system was modeled by Taylor series and the results of the simulations have shown a significant reduction in the 3 th and 5 th order intermodulation distortion products (IMD) by 30 dB over 2GHz bandwidth. Penerbit UTM 2007 Book Section PeerReviewed Idrus, Sevia Mahdaliza and Maiteeg, Ahmed Bashir and Harun, Hilmi (2007) Laser nonlinearity reduction model using taylor series expansion for free space optical communication system. In: Advances In Free Space Optical Technology. Penerbit UTM, Johor, pp. 60-73. ISBN 978-983-52-0670-2 |
| spellingShingle | TK Electrical engineering. Electronics Nuclear engineering Idrus, Sevia Mahdaliza Maiteeg, Ahmed Bashir Harun, Hilmi Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title | Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title_full | Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title_fullStr | Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title_full_unstemmed | Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title_short | Laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| title_sort | laser nonlinearity reduction model using taylor series expansion for free space optical communication system |
| topic | TK Electrical engineering. Electronics Nuclear engineering |
| work_keys_str_mv | AT idrusseviamahdaliza lasernonlinearityreductionmodelusingtaylorseriesexpansionforfreespaceopticalcommunicationsystem AT maiteegahmedbashir lasernonlinearityreductionmodelusingtaylorseriesexpansionforfreespaceopticalcommunicationsystem AT harunhilmi lasernonlinearityreductionmodelusingtaylorseriesexpansionforfreespaceopticalcommunicationsystem |