Silicon dual-ring modulator driven by differential signal

Yu, Hui; Pantouvaki, Marianna; Verheyen, Peter; Lepage, Guy; Absil, P.; Bogaerts, Wim; Campenhout, Joris Van

doi:10.1364/ol.39.006379

Cited by 22 publications

(14 citation statements)

References 18 publications

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“…The use of electro-optic coupled resonators for quantum microwave-to-optical conversion has been studied in [14]. It should be noted that dual-ring modulators were also proposed prior to these works [30], but these were designed for baseband data modulation and operated in a different regime.…”

Section: Comparison To Prior Artmentioning

confidence: 99%

Triply resonant coupled-cavity electro-optic modulators for RF to optical signal conversion

Gevorgyan¹,

Khilo²,

Ehrlichman³

et al. 2020

Opt. Express

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We propose a triply-resonant electro-optic modulator architecture which maximizes modulation efficiency using simultaneous resonant enhancement of the RF drive signal, the optical pump, and the generated optical sideband. Optical enhancement of the optical pump and the sideband is achieved using resonant supermodes of two coupled optical resonators, and the RF enhancement is achieved with LC circuits formed by the capacitances of the optical resonators and inductors which can be implemented using CMOS technology. In the proposed configuration, the photon lifetime determines the bandwidth of the RF response but not its center frequency, which is set by the coupling strength between the two resonators and is not subject to the photon lifetime constraint inherent to conventional single-mode resonant modulators. This enables efficient operation at high RF carrier frequencies without a reduction in efficiency commonly associated with the photon lifetime limit. Two optical configurations of the modulator are proposed: a "basic" configuration with equal Q-factors in both supermodes, most suitable for narrowband RF signals, and a "generalized" configuration with independently tailored Qfactors of the two supermodes, which makes it possible to broaden the RF bandwidth without sacrificing the resonant enhancement of the optical pump and paying a penalty in modulation efficiency associated with doing so. Additionally, a significant gain in modulation efficiency is expected from RF signal enhancement by LC resonant matching. This results in a modulator which is compact, efficient, and capable of modulation at high RF carrier frequencies. The proposed modulator architecture optimally engineers the interaction of the device with each of the three signals and between them, can be applied to any modulator cavity design or modulation mechanism and promises to enable complex RF-photonic systems on chip. arXiv:1901.00071v1 [physics.optics]

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Section: Comparison To Prior Artmentioning

confidence: 99%

Triply resonant coupled-cavity electro-optic modulators for RF to optical signal conversion

Gevorgyan¹,

Khilo²,

Ehrlichman³

et al. 2020

Opt. Express

View full text Add to dashboard Cite

show abstract

“…Ring resonator modulators have recently been extensively investigated in various fields owing to their unique structures [1][2][3][4][5][6][7][8]; however, conventional ring modulators usually suffer from narrow modulation bandwidths that greatly hinder their potential applications. In addition, resonance wavelength shifts of ring modulators are usually limited to the order of 0.1 nm [4].…”

Section: Introductionmentioning

confidence: 99%

Transverse electric/magnetic switchable absorption ring modulator based on graphene

Zhou

Chen

2021

IET Optoelectronics

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We propose a transverse electric (TE)/transverse magnetic (TM) switchable absorption ring modulator based on graphene that can operate in either the TE or the TM mode. By adjusting the applied voltages onto the graphene layers in horizontal and perpendicular directions, either a TE or a TM absorption ring modulator can be configured, as has been previously reported. The simulation results show that a TE or TM modulator can be configured with a large extinction ratio and wide waveband from 1300 to 2000 nm. Specifically, the modulation bandwidth can be enlarged to over 130 GHz, which is rarely seen in conventional ring modulators. Also investigated is the possibility of extending the resonance wavelength shift to more than 5 nm by replacing the monolayer graphene structure with a quadrilayer graphene structure.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…The gaining performance can be also extended to the ring modulator and various graphenebased ring modulators have been proposed quite recently (Joshi and Kaushik 2020;Ding et al 2015;Qiu et al 2014;Li et al 2021). It should be noted that traditional silicon-based ring modulators (Pal and Gupta 2019;de Valicourt et al 2017;Yu et al 2014) are usually suffering from the narrow modulation bandwidth and small resonance tunability, however, with the help of graphene, graphene-based ring resonator modulators can display large resonance tunability and modulation bandwidths.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis and optimization of TM/TE independent graphene ring modulator

Zhou

Wen

2021

Opt Quant Electron

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We present the graphene-based TM/TE independent ring modulator with large resonance tunability and modulation bandwidth. By adjusting the external voltage from different directions, the graphene-based ring modulator can operate either on TM or TE mode. Through the performance analysis and optimization, the proposed optical ring modulator exhibits a large resonance tunability over 5.8 nm/V and a broadband operation wavelength spectrum from 1.3 m to 2 m, the large extinction ratio of 20.8 dB and 24 dB can be achieved for TM and TE modulator, respectively. Besides, this device exhibits a large 3 dB electro-optic bandwidth which is rarely seen in conventional ring modulators, and all these features would make the proposed graphene ring modulator find great potential use in future optical communications.

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Silicon dual-ring modulator driven by differential signal

Cited by 22 publications

References 18 publications

Triply resonant coupled-cavity electro-optic modulators for RF to optical signal conversion

Triply resonant coupled-cavity electro-optic modulators for RF to optical signal conversion

Transverse electric/magnetic switchable absorption ring modulator based on graphene

Performance analysis and optimization of TM/TE independent graphene ring modulator

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