Abstract
This paper investigates the transmission of an injection-locked optical orthogonal frequency-division multiplexing (ILO-OFDM) scheme over an optical fiber. In the ILO-OFDM system, an optically injection-locked semiconductor laser is utilized to directly modulate the OFDM signal on the optical carrier. With a sufficiently large injection strength and a negative shift of the detuning frequency, the modulation sidebands become asymmetric similar to a single sideband modulation (SSB). The SSB spectrum is advantageous for minimizing the chromatic dispersion-induced power variation. Using simulation we show that ILO-OFDM system can be used to compensate for chromatic dispersion in long-haul applications.
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Acknowledgments
The authors would like to thank Prof. Hamidreza Amindavar of Tehran Polytechnic University, and Dr. Siavash Ekbatani of Qualcomm Inc. for their valuable technical discussions.
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Karkhaneh, H., Liu, JM., Ghorbani, A. et al. Fiber dispersion effects in injection-locked optical OFDM systems. Opt Quant Electron 47, 3091–3100 (2015). https://doi.org/10.1007/s11082-015-0197-z
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DOI: https://doi.org/10.1007/s11082-015-0197-z