Application of photonic crystal ring resonator nonlinear response for full-optical tunable add–drop filtering

Tavousi, Alireza; Mansouri-Birjandi, Mohammad Ali; Ghadrdan, Majid; Ranjbar-Torkamani, Mina

doi:10.1007/s11107-016-0680-x

Cited by 71 publications

(10 citation statements)

References 35 publications

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“…Photonic crystal ring resonators (PCRR) are well-known structures because they have excellent characteristics in realizing various compact optical devices [21][22][23][24][25]. Resonant modes of a PCRR depends on several physical parameters such as rod radius, lattice constant, and rods' refractive index [26][27][28][29][30][31]. In recent reports, researchers have shown that a PCRR can be used as an optical filter, and blueshift or redshift may occur in the resonant mod by changing any of these parameters [13,23].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Fast Tunable Optoelectronic Full-Adder Based on Photonic Crystal Ring Resonators Covered By Graphene Nanoshells

Naghizade

Saghaei

2021

Preprint

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This paper reports a new design of a tunable optoelectronic full-adder using two photonic crystal ring resonators (PCRRs). Every PCRR consists of a matrix of silicon rods surrounded by silica rods covered with graphene nanoshells (GNSs). The proposed full-adder is formed by three input ports, two PCRRs, and two output ports for 'SUM' and 'CARRY'. The plane wave expansion technique is used to study the photonic band structure of the fundamental PC microstructure, and the finite-difference time-domain method is also employed in the final design for solving Maxwell's equations to analyze the light propagation inside the structure. We can tune the PhC resonant mode for our desired application by setting the chemical potential of GNSs with an appropriate gate voltage. The numerical results reveal that when the chemical potential of GNSs changes, the switching mechanism occurs and manages the coupling and propagation direction of the input beam inside the structure. We systematically study the effects of physical parameters on the transmission, reflection, and absorption spectra. Our numerical results also demonstrate that the maximum delay is about 0.8 ps. The 663 µm2 area of the proposed full-adder based on two-dimensional materials makes it a building block of every photonic integrated circuit used for data processing systems.

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Section: Introductionmentioning

confidence: 99%

Ultra-Fast Tunable Optoelectronic Full-Adder Based on Photonic Crystal Ring Resonators Covered By Graphene Nanoshells

Naghizade

Saghaei

2021

Preprint

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“…Besides optical waveguides, one can create optical resonators inside PhCs. PhC-based optical resonators are categorized into two main groups namely resonant cavities (Gupta and Janyani 2014) and ring resonators (Tavousi et al 2017). These resonators are wavelength selective mechanism which have been used for designing different kinds of optical lters and demultiplexer.…”

Section: Introductionmentioning

confidence: 99%

A novel proposal for ultra-fast all optical half subtractor based on nonlinear ring resonators

et al. 2021

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Optical half subtractors are required for designing any optical computation system. Operation speed and the on/off contrast ratios are very important characteristics for any optical logic device. A novel structure composed of three nonlinear ring resonators and some optical waveguides are used for designing for the proposed half subtractor with improved operation speed and on/off contrast ratio. The simulation results show that the rise time for this structure is 1.5 ps. Also the on/off contrast ratios for B and D are 13.7 dB and 14.5 dB respectively.

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“…Integrated ring resonators have found a number of usages in integrated optics due to their compact size, low cost of fabrication and their ability to integrate with on chip circuits. Today, micro-size resonators are practical devices for switching [2][3][4], multiplexing, demultiplexing [5] and wavelength filtering [6,7], modulation applications [8], wide band antenna [9,10], modulator and logic gate in optical signal processing [11,12], and sensitive sensors and biosensors [13][14][15]. One of the primary applications of ring resonators is their application as an add-drop notch type filter in optical networks.…”

Section: Introductionmentioning

confidence: 99%

Double critical coupled ring resonator-based add–drop filters

Bahadoran

Amiri

2019

J Theor Appl Phys

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In this paper, we introduced double-critical coupling condition (DCCC) for lossy mode couplers of the add-drop resonator to achieve the desirable and tunable signals required for optical communication and photonics sensors applications. The performance of add-drop resonator under double-critical condition is simulated and analyzed. Some equations were derived for optical parameters including full width at half maximum (FWHM), the out-of-band rejection ratio (OBRR), quality factor and the crosstalk of the add-drop resonator, and the output signals were examined as a function of DCCC. Based on double-critical condition, the OBRR values larger than 40 dB, the crosstalk larger than 50 dB, highest quality factor of 9000 and the FWHM as small as 0.17 nm were realized in silicon add-drop resonator, which are quite compatible with the reported experimental data. Double-critical condition shows that the lossless coupling is not enough condition to acquire high-quality filtered signal with a large crosstalk and in presence of coupling losses, the DCCC can determine the optimum relation between the strength of coupling coefficients and the coupling losses.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Application of photonic crystal ring resonator nonlinear response for full-optical tunable add–drop filtering

Cited by 71 publications

References 35 publications

Ultra-Fast Tunable Optoelectronic Full-Adder Based on Photonic Crystal Ring Resonators Covered By Graphene Nanoshells

Ultra-Fast Tunable Optoelectronic Full-Adder Based on Photonic Crystal Ring Resonators Covered By Graphene Nanoshells

A novel proposal for ultra-fast all optical half subtractor based on nonlinear ring resonators

Double critical coupled ring resonator-based add–drop filters

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