Reconfigurable integrated optoelectronics

Soref, Richard A.

doi:10.1109/ico-ip.2011.5953805

Cited by 10 publications

(4 citation statements)

References 24 publications

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“…Microring resonator (MRR) is suitable to act as the switching element in the directed logic circuit due to the compact size, low power consumption and high operation speed. Currently, various directed logic circuits based on MRRs have been proposed and demonstrated [24][25][26][27] . In this report, we propose and demonstrate a directed logic circuit which can perform XOR/XNOR logic operations based on CRIT.…”

Section: Introductionmentioning

confidence: 99%

XOR/XNOR directed logic circuit based on coupled-resonator-induced transparency

Tian

Zhang

Yang

2013

Optics and Photonics for Information Processing VII

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Coupled-resonator-induced transparency (CRIT) effect has been widely studied in parallelly coupled double microring resonators (MRRs), and various applications based on the CRIT effect have been demonstrated. We report the proposal and demonstration of a directed logic circuit with the functions of XOR and XNOR using CRIT. Two electrical signals applied to two coupled MRRs represent two operands of the logic operations, and the operation results are represented by the output optical signal. As proof-of-concept, the thermo-optic modulation scheme is employed with an operating speed of 10 kbps.

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Section: Introductionmentioning

confidence: 99%

XOR/XNOR directed logic circuit based on coupled-resonator-induced transparency

Tian

Zhang

Yang

2013

Optics and Photonics for Information Processing VII

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“…For example, progress has been made on the "hexagonal lattice interconnection" of 2 × 2 MZIs. 17 For the microwave-antenna beamsteering application, 18 the on-chip switches decide which optical time-delay elements shall be used. On-chip optical beamsteering has been studied, but there the EO elements are modulators rather than switches.…”

Section: Photonic Switching Applicationsmentioning

confidence: 99%

Tutorial: Integrated-photonic switching structures

Soref

2018

APL Photonics

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Recent developments in waveguided 2 × 2 and N × M photonic switches are reviewed, including both broadband and narrowband resonant devices for the Si, InP, and AlN platforms. Practical actuation of switches by electro-optical and thermo-optical techniques is discussed. Present datacom-and-computing applications are reviewed, and potential applications are proposed for chip-scale photonic and optoelectronic integrated switching networks. Potential is found in the reconfigurable, programmable “mesh” switches that enable a promising group of applications in new areas beyond those in data centers and cloud servers. Many important matrix switches use gated semiconductor optical amplifiers. The family of broadband, directional-coupler 2 × 2 switches featuring two or three side-coupled waveguides deserves future experimentation, including devices that employ phase-change materials. The newer 2 × 2 resonant switches include standing-wave resonators, different from the micro-ring traveling-wave resonators. The resonant devices comprise nanobeam interferometers, complex-Bragg interferometers, and asymmetric contra-directional couplers. Although the fast, resonant devices offer ultralow switching energy, ∼1 fJ/bit, they have limitations. They require several trade-offs when deployed, but they do have practical application.

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“…In directed logic structure, the operation is performed by a network of elements, each of which implements a switching operation [3][4][5][6][7][8][9]. It takes a finite amount of time for each switch to respond to a change in its controlling electrical signal and all of the switches operate simultaneously, so their switching delays do not accumulate, thus resulting in a high-speed logic operation.…”

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confidence: 99%

10 GHz electro-optical OR/NOR directed logic device based on silicon micro-ring resonators

et al. 2014

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We report the demonstration of an OR/NOR directed logic device, which consists of two cascaded micro-ring resonators (MRRs) modulated through electric-field-induced carrier depletion in reverse-biased PN junctions embedded in the ring waveguides. The resonance wavelength mismatch between the two nominally identical MRRs, caused by fabrication error, is compensated by thermal tuning. Two high-speed electrical signals applied to the PN junctions act as the operands, and the logical operation results are represented by the optical powers detected at the two output ports of the device. The working parameters of the device, including the working wavelength, the voltage applied to the micro-heater, and the voltages applied to the two PN junctions are extracted from the static response spectra of the device. Dynamic experimental results show that the OR/NOR logical operations can be achieved at the speed of 10 GHz.

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Reconfigurable integrated optoelectronics

Cited by 10 publications

References 24 publications

XOR/XNOR directed logic circuit based on coupled-resonator-induced transparency

XOR/XNOR directed logic circuit based on coupled-resonator-induced transparency

Tutorial: Integrated-photonic switching structures

10 GHz electro-optical OR/NOR directed logic device based on silicon micro-ring resonators

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