Optical Single-Sideband Modulation Based on a Dual-Drive MZM and a 120° Hybrid Coupler

Xue, Min; Pan, Shilong; Zhao, Yongjiu

doi:10.1109/jlt.2014.2344853

Cited by 85 publications

(57 citation statements)

References 25 publications

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“…Up to now, numerous OSSB modulation schemes have been proposed in Ref. . For some applications in wireless communication and RoF systems, an OSSB modulation with a tunable optical carrier to sideband ratio (OCSR) is needed.…”

Section: Introductionmentioning

confidence: 99%

A novel method to realize optical single sideband modulation with tunable optical carrier to sideband ratio

Peng

Wen

Gao

et al. 2017

Micro & Optical Tech Letters

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An optical single sideband (OSSB) modulation method with tunable optical carrier to sideband ratio (OCSR) is proposed and experimentally demonstrated based on a dual‐polarization Mach–Zehnder modulator (DPol‐MZM). An orthogonally polarized double sideband (DSB) signal output from the DPol‐MZM is filtered out the carrier and one sideband utilizing an optical bandpass filter (OBPF). Then the orthogonally polarized OSSB signal is transformed into a linear polarized OSSB signal by a polarizer (Pol). By changing the polarization direction of the Pol utilizing a polarization controller (PC), the tunable OCSR can be achieved. In the demonstrated experiments, an OSSB modulation is implemented over the wide microwave frequency range of 5–30 GHz. The OCSR is tuned from −30 dB to infinity. The proposed OSSB modulation method is advantageous in many respects as large tunable OCSR range, wide operation bandwidth, and simple structure.

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Section: Introductionmentioning

confidence: 99%

A novel method to realize optical single sideband modulation with tunable optical carrier to sideband ratio

Peng

Wen

Gao

et al. 2017

Micro & Optical Tech Letters

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“…Many ways solution to solve nonlinear, among others are to modified component on optical systems. Recently, a novel scheme based on MZM dual drive to combine hybrid coupler and double parallel MZM an optical single side band that has been conducted [1,2]. Investigated Direct Modulation (DM) and External Modulation (EM), and direct modulator on QAM (Quadrature Amplitude Modulation) has exhibits to mitigate SBS (stimulated Brillouin scattering) and optimization nonlinear compensated for LTE (Long Term Evolution)-RoF with varied launch power for enhanced power budget [3].…”

Section: Introductionmentioning

confidence: 99%

A Novel Scheme for Orthogonal Frequency Division Multiplexing-Radio over Fiber Based on Modulator and Dithering Technique: Impact of Self Phase Modulation and Group Velocity Dispersion

Hario

Mustika

Susanto

et al. 2017

IJIES

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Nonlinearity characteristic in OFDM (Orthogonal Frequency Division Multiplexing)-RoF (Radio over Fiber) system which causes the frequency shift of light and has a high electrical field on medium transmission. We begin by discussing SPM (Self Phase Modulation) and GVD (Group Velocity Dispersion) are part of nonlinear characteristic. SPM induced spectral broadening will be degrade performance of light wave and GVD will be impact on duration pulse of optic. The impaired information signal reduces the power and later affects the quality of signal. This research aims to focus on the improvement of two external modulator LiNbO3 MZM (Lithium Niobate-Mach Zehnder Modulator) and applying of frequency dithering techniques to reduce the existing nonlinearity of the optical fiber purposely to enhance the receiving power for the lower input power with the length of fiber up to 100 km. Finally, the result shows an average of 18.5% increase in the power level for linewidth of 1 MHz, 3 MHz, and 7 MHz across 50 km distance with the log BER (Bit Error Rate) -2.407, BER 0.003, and SNR (Signal to Noise Ratio) 43.8, across 100 km of optical fiber the value of log BER -2.471, BER 0.003, and SNR 49.14.

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“…[5][6][7][8] Heretofore, various approaches have been presented to generate OSSB modulation. One method is by means of π∕2-phase shift via hybrid coupler in a dual-input Mach-Zehnder modulator or polarization modulator 9,10 or via optical Hilbert transformer. 11,12 A design with an optical fiber Sagnac loop and dual-electrode traveling wave modulator was also demonstrated to achieve OSSB modulation where the modulated bandwidth was mainly limited by the hybrid radio frequency (RF) coupler.…”

Section: Introductionmentioning

confidence: 99%

Optical single-sideband modulation based on silicon-on-insulator coupled-resonator optical waveguides

Song

Chew

et al. 2015

Opt. Eng

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Abstract. We propose and demonstrate for the first time an optical single-sideband (OSSB) modulation generation based on silicon-on-insulator coupled-resonator optical waveguides (CROWs) capable of operating at wide bandwidth with enhanced sideband suppression. The optimum order of the CROW filter was synthesized based on comprehensive performance analysis including optical sideband suppression and electrical power variation. Experimental results demonstrate an OSSB signal with sideband suppression as large as 23 dB. The performance of the proposed OSSB was demonstrated via compensating radio frequency (RF) power degradation in the transmission of the RF signal within the fiber.

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Optical Single-Sideband Modulation Based on a Dual-Drive MZM and a 120° Hybrid Coupler

Cited by 85 publications

References 25 publications

A novel method to realize optical single sideband modulation with tunable optical carrier to sideband ratio

A novel method to realize optical single sideband modulation with tunable optical carrier to sideband ratio

A Novel Scheme for Orthogonal Frequency Division Multiplexing-Radio over Fiber Based on Modulator and Dithering Technique: Impact of Self Phase Modulation and Group Velocity Dispersion

Optical single-sideband modulation based on silicon-on-insulator coupled-resonator optical waveguides

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