Study on dispersion-induced phase noise in an optical OFDM radio-over-fiber system at 60-GHz band

Wei, Chia Chien; Chen, Jason Jyehong

doi:10.1364/oe.18.020774

Cited by 19 publications

(17 citation statements)

References 17 publications

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“…23 In this proposal, 2 dB degradation in the EVM after transmission over 40 km of fiber is generated, compared with BTB. 23 In this proposal, 2 dB degradation in the EVM after transmission over 40 km of fiber is generated, compared with BTB.…”

Section: Simulations and Resultsmentioning

confidence: 99%

Design and analysis of an orthogonal frequency division multiplexing millimeter wave signal generation and distribution with dual driver Mach-Zehnder modulator and semiconductor optical amplifier

et al. 2012

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A scheme of photonic orthogonal frequency division multiplexing (OFDM) signal generation and distribution employing copolarized pumps generated by a dual driver Mach-Zehnder modulator and fourwave mixing inside an optical semiconductor amplifier (SOA) is proposed and evaluated by theoretical analysis and simulations. In this proposal, 12 times optical frequency multiplication is utilized to up-convert the intermediate frequency band OFDM signal to the millimeter wave (mm-wave) band. The system performance under various key parameters of the SOA and the input optical signal is evaluated and discussed. The results present useful insight for the practicality of photonic mm-wave signal generation and distribution in the next-generation optical-wireless access network.

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Section: Simulations and Resultsmentioning

confidence: 99%

Design and analysis of an orthogonal frequency division multiplexing millimeter wave signal generation and distribution with dual driver Mach-Zehnder modulator and semiconductor optical amplifier

et al. 2012

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“…Gaussian distributed and thus produces a larger BER. To improve the accuracy of the BER estimator, the distribution of the ICI should be identified, and the t-distribution has been shown to be a good fit [16]. An accurate BER estimator employing well-matched distribution of the ICI is beyond the scope of this work, since we are mainly focusing on the PRT effect.…”

Section: No 5 / Optics Express 4479mentioning

confidence: 99%

“…The interplay between dispersion and laser PN in dispersion uncompensated transmission has been extensively studied for single carrier systems [12][13][14] and direct-detection optical OFDM systems [15,16]. This effect is negligible in conventional CO-OFDM systems, because the symbol duration is much longer than the dispersion induced walk-off and thus the laser PN is highly correlated across all the subcarriers.…”

Section: Introductionmentioning

confidence: 99%

Dispersion-enhanced phase noise effects on reduced-guard-interval CO-OFDM transmission

2011

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Unlike conventional CO-OFDM systems, we show in this paper that reduced-guard-interval (RGI) CO-OFDM systems experience subcarrier-dependent phase noise (PN) from the local oscillator laser. This phenomenon manifests in RGI-CO-COFM systems because the chromatic dispersion (CD) induced walk-off becomes comparable to the OFDM symbol length. We term this phenomenon the dispersion enhanced PN (DEPN). In this work an analytical study of the impact of DEPN on CO-OFDM transmission is conducted. We develop a system-level analytical model and calculate the variance of the dispersion-induced subcarrier-dependent phase rotation term (PRT) using two different distribution patterns of pilot subcarriers (PS). Moreover, we present a bit error rate (BER) estimator to quantify the system performance degradation due to PRT. Numerical simulations are then performed to verify the analytical model. Finally, we propose a grouped maximum-likelihood (GML) phase estimation approach to mitigate the DEPN impairment, and demonstrate a 0.7-1.7 dB SNR improvement at BER=10⁻³ for typical 100 Gb/s RGI CO-OFDM systems.

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“…PN on an OFDM transmission system causes a phase rotation term on each subcarrier. This destroys the orthogonality of subcarriers and results in intercarrier interference [19,20].…”

Section: Introductionmentioning

confidence: 99%

Proposal and Performance Evaluation of an Efficient RZ-DQPSK Modulation Scheme in All-Optical OFDM Transmission Systems

Mirnia

Zarei

Emami

et al. 2013

J. Opt. Commun. Netw.

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Abstract-A return-to-zero differential quadrature phase-shift keying (DQPSK) modulation scheme is proposed for all-optical orthogonal frequency-division multiplexing transmission systems. The system uses coupler-based inverse fast Fourier transform/fast Fourier transform to support a 700 km single-mode fiber link and a transmission rate of 40 Gb∕s without any nonlinear compensation. The performance of the proposed system is evaluated using simulation and four performance measures are obtained, namely, the eye diagram, the eyeopening penalty (EOP), the power spectral broadening, and the bit error rate (BER). The effect of self-phase modulation is taken into account in the performance evaluation. In addition, the performance of the proposed system is compared to that of a traditional one adopting a non-return-to-zero DQPSK scheme. Our results reveal that the proposed system outperforms the traditional one in all four aforementioned performance measures, yet the spectral efficiency is almost preserved. Specifically, for an input average power of 12 dBm, a reduction in both the required optical-signal-to-noise ratio of about 4 dB (to achieve a BER of 10 −6 ) and the EOP of about 5 dB are reported when adopting the proposed system, as compared to the traditional one.Index Terms-All-optical OFDM; Eye diagram; Fiber optic nonlinearity; Non-return-to-zero differential quadrature phase-shift keying (NRZ-DQPSK); Return-to-zero differential quadrature phase-shift keying (RZ-DQPSK); Selfphase modulation (SPM).

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Study on dispersion-induced phase noise in an optical OFDM radio-over-fiber system at 60-GHz band

Cited by 19 publications

References 17 publications

Design and analysis of an orthogonal frequency division multiplexing millimeter wave signal generation and distribution with dual driver Mach-Zehnder modulator and semiconductor optical amplifier

Design and analysis of an orthogonal frequency division multiplexing millimeter wave signal generation and distribution with dual driver Mach-Zehnder modulator and semiconductor optical amplifier

Dispersion-enhanced phase noise effects on reduced-guard-interval CO-OFDM transmission

Proposal and Performance Evaluation of an Efficient RZ-DQPSK Modulation Scheme in All-Optical OFDM Transmission Systems

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