Peak-to-average power ratio reduction of transmission signal of all-optical orthogonal time/frequency domain multiplexing using fractional Fourier transform

Abstract We examine a peak-to-average power ratio (PAPR) reduction effect in an optical fiber link using a fractional Fourier transform (FrFT). Fractional OFDM (FrOFDM) based on FrFT in place of discrete Fourier transform is a multiplexing approach that can balance the pros and cons of subcarriers in the time and frequency domains while keeping its orthogonal condition. A careful investigation of the PAPR behavior of a FrOFDM signal confirms that its PAPR can be minimized at a point where a Nyquist pulse train is formed by a time-lens effect. With emphasis on this low-PAPR characteristic of a Nyquist pulse train, the signal quality degradation owing to fiber nonlinearity can be mitigated. A 1.0-dB signal quality improvement after propagation in a dispersion-compensated fiber link is demonstrated in a simulation for a 12 × 10 - Gbaud ∕ s 16 QAM FrOFDM signal in comparison with that of a conventional OFDM.

[1]  Jie Pan,et al.  Nonlinear Electrical Compensation for the Coherent Optical OFDM System , 2011, Journal of Lightwave Technology.

[2]  Naoya Wada,et al.  Cost effective all-optical fractional OFDM receiver using an arrayed waveguide grating , 2016 .

[3]  Francesca Parmigiani,et al.  Optical nonlinearity mitigation of 6 χ 10 GBd polarization-division multiplexing 16 QAM signals in a field-installed transmission link , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[4]  Arthur J. Lowery,et al.  All-Optical OFDM With Cyclic Prefix Insertion Using Flexible Wavelength Selective Switch Optical Processing , 2014, Journal of Lightwave Technology.

[5]  Gabriella Cincotti.  Optical OFDM based on the fractional Fourier transform , 2011, OPTO.

[6]  Naoya Wada,et al.  Flexible power-efficient Nyquist-OTDM transmitter, using a WSS and time-lens effect , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[7]  Masataka Nakazawa,et al.  Ultrahigh-speed "orthogonal" TDM transmission with an optical Nyquist pulse train. , 2012, Optics express.

[8]  Francesca Parmigiani,et al.  26 Tbit s-1 line-rate super-channel transmission utilizing all-optical fast Fourier transform processing , 2011 .

[9]  Tsutomu Kitoh,et al.  Integrated-optic demultiplexers for optical OFDM signals , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[10]  P Boffi,et al.  Spectrally-efficient all-optical OFDM by WSS and AWG. , 2015, Optics express.

[11]  L. Nelson,et al.  Space-division multiplexing in optical fibres , 2013, Nature Photonics.

[12]  Masahiko Jinno,et al.  Spectrum-efficient and scalable elastic optical path network: architecture, benefits, and enabling technologies , 2009, IEEE Communications Magazine.

[13]  Naoya Wada,et al.  Demonstration and performance investigation of all-optical OFDM systems based on arrayed waveguide gratings. , 2012, Optics express.

[14]  Arthur James Lowery.  Inserting a cyclic prefix using Arrayed-Waveguide Grating Routers in all-optical OFDM transmitters. , 2012, Optics express.

[15]  S. Mino,et al.  Fractional OFDM based transmitter and receiver for time/frequency multiplexing in gridless, elastic networks , 2015, 2015 Optical Fiber Communications Conference and Exhibition (OFC).

[16]  Masataka Nakazawa,et al.  Linear and nonlinear propagation of optical Nyquist pulses in fibers. , 2012, Optics express.

[17]  Y Tang,et al.  Coherent optical OFDM: theory and design. , 2008, Optics express.

[18]  Naoya Wada,et al.  Flexible OFDM-based access systems with intrinsic function of chromatic dispersion compensation , 2015 .

[19]  Shizhong Xie,et al.  All-Optical OFDM Demultiplexer Based on an Integrated Silicon-on-Insulator Technique , 2016, IEEE Photonics Journal.

[20]  N. Cvijetic,et al.  OFDM for Next-Generation Optical Access Networks , 2012, Journal of Lightwave Technology.

[21]  Shizhong Xie,et al.  All-Optical Sampling Orthogonal Frequency-Division Multiplexing Scheme for High-Speed Transmission System , 2009, Journal of Lightwave Technology.

[22]  S. Mino,et al.  PAPR management of all-optical OFDM signal using fractional fourier transform for fibre nonlinearity mitigation , 2015, 2015 European Conference on Optical Communication (ECOC).