All‐optical clocked D flip‐flop memory using a hybrid integrated S‐R latch

Reis, C.; Maziotis, Alexandros; Kouloumentas, Ch.; Stamatiadis, C.; Bougioukos, M.; Calabretta, Nicola; Andre, P.; Dionísio, Rogério; Neto, B.; Dorren, H.J.S.; Avramopoulos, H.; Teixeira, A.

doi:10.1002/mop.25998

Cited by 16 publications

(6 citation statements)

References 9 publications

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“…Exploiting non-linear effects in SOAs and MZI-SOAs has enabled the demonstration of integrated optical buffers, making GHz flip-flop operation possible [101]. The MZI-SOA has become an important element to performs a variety of optical logic functions and provides high Extinction Ratio (ER), requires low switching energies to operate and have regenerative capability and compactness [8,[102][103][104]. An optical logic Exclusive OR (XOR) gate, based on a hybrid integrated MZI-SOA, served has the starting point for the modulation format conversion scheme proposed in Chapter 5.…”

Section: Logic Gatesmentioning

confidence: 99%

Advanced optical modulation and format conversion

2014

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Section: Logic Gatesmentioning

confidence: 99%

Advanced optical modulation and format conversion

2014

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“…OMRR based optical switch is a suitable choice to develop various sequential and combinational circuits. Available literature provides different techniques to implement all-optical J-K flip flop [14,15], D flip flop [16][17][18][19][20][21][22] and S-R flip-flop with ring resonators [23]. In the present work, an attempt is made to the implementation of D-flip flop and two-bit all-optical down-counter using GaAs-AlGaAs based OMRR.…”

Section: Introductionmentioning

confidence: 99%

New approach to design D-flip flop and two bit down counter using optical micro-ring resonator for high speed data processing

Verma¹,

Mishra

2020

SN Appl. Sci.

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Optical switches play a key role in the field of high-speed optical fiber communication and signal processing. Present work shows the design and implementation of D-flip flop and a two-bit optical counter using optical micro ring resonator (OMRR). The design of the proposed model is developed by considering nonlinear material-based resonators. Here, three OMRR based optical switches are used to design the D-flip flop circuit thereafter two-bit optical counter is implemented using the modeled D-flip flop. The mathematical model of the D-flip flop circuit is provided in the Z-domain by unit delay signal processing approach. The effectiveness of the proposed D flip flop and two-bit down counter circuit is described in the present work. The accuracy and feasibility of the circuits are determined by estimating various performance parameters during simulation.

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“…Flip-flop memory is one kind of the most interesting memory types. However, it is still a great challenge to realize ultra-fast flip-flop operation with the switching time on the picosecond time scale for GHz data memory [3]. Two SOA-based ON/OFF switches and two coupled semiconductor optical amplifier-Mach Zender interferometer (SOA-MZI) gates forming an optical flip-flop have demonstrated an optical random access memory (RAM) cell [4].…”

Section: Introductionmentioning

confidence: 99%

Untitled

2018

Int J Opt Photonic Eng

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The lasing without inversion phenomena in the three-level nanoparticles inserted in the micro ring resonators as the active gain medium for loss compensation in the all-optical memory unit cell is investigated. The effect of parameters such as pumping rate is analyzed. Also, the electromagnetically induced transparency effect in the three-level quantum dots is utilized as an on/off phase shifter for data reading at requested time. The optical integrator generates an optical step function to save the input data. Both the input data into the memory and the output read out are the return-to-zero Gaussian signals. Since, the light in the integrator is mostly erased during the rising edge of the phase shift pulse, the output data has the narrower pulse width. Finally, the effect of the power coupling coefficient of the directional couplers on data storage and read out process is investigated. Device minimizing for integrated purposes and high-speed data saving are the main advantages of the optical integrator-based memory.

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All‐optical clocked D flip‐flop memory using a hybrid integrated S‐R latch

Abstract: We demonstrate, by using multiple Mach-Zehnder interferometer (MZI)-semiconductor optical amplifier structures, an

Cited by 16 publications

References 9 publications

Advanced optical modulation and format conversion

Advanced optical modulation and format conversion

New approach to design D-flip flop and two bit down counter using optical micro-ring resonator for high speed data processing

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