Simple pre-distortion schemes for improving the power efficiency of SOA-based IR-UWB over fiber systems
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- 作者：H. Takia ; b ; S. Azoub ; azou@enib.fr" class="auth_mail" title="E-mail the corresponding author ; A. Hamiea ; c ; A. Al Housseinia ; A. Alaeddinea ; A. Sharaihab
- 关键词：Ultrawideband (UWB) communications ; Impulse radio (IR) ; Semiconductor optical amplifier (SOA) ; Nonlinear effects ; Electrical pre-distortion ; Power efficiency
- 刊名：Optics Communications
- 出版年：2017
- 出版时间：1 January 2017
- 年：2017
- 卷：382
- 期：Complete
- 页码：225-231
- 全文大小：2039 K
文摘
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The power efficiency of a SOA-based IR-UWB over fiber system is investigated.
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SOA nonlinearities are mitigated by tuning some key parameters of the pulse shape at the transmitter.
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A new pulse shape is proposed so as to achieve a high power efficiency while respecting the standard FCC spectral mask.
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The question of the power efficiency is investigated in presence of OOK/PPM modulation schemes.
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By combining SOA inline amplification and pre-distortion a highly power efficient system is designed.