Optical Photonic Gates

8/13/2019 Optical Photonic Gates

1/39

Circuitos Fotnicos Integrados

Portas Lgicas

Vitaly F. Rodrguez-Esquerre

[email protected]

Departmento de Engenharia Eltrica

Programa de Ps-Graduao em Engenharia Eltrica

Universidade Federal de Bahia, Salvador, Brasil
mailto:[email protected]:[email protected]


2/39

Motivao

Fig. 1. IP Traffic Bandwitdh (2006-2015)


3/39

Alternativas

Aumentar a capacidade das fibras instaladas

-Tcnicas de modulao-Deteo coerente-Novos equipamentos

Instalao de novas fibras

-Fibras com mltiplos ncleos

Processamento Totalmente ptico (limitao doscircuitos baseados em semicondutores)-Novos conceitos de guiamento-Portas lgicas pticas-Propriedades no-lineares-Assimetrias nas geometrias


4/39

Circuito Fotnico Integrado


5/39

Vantagens da Fotnica

-Increase in the speed of computation.-Immune to electromagnetic interference.-Free from electrical short circuits.-Have low-loss transmission and large bandwidth.-Speed of light in photonic circuits will be close to speed of light in vacuum-Capable of communicating several channels in parallel without

interference.-Possesses superior storage density and accessibility-No power loss due to excess of heating.-Life of the hardware of optical computer is more


6/39

Periodic Electromagnetic Media

1887 1987

with photonic band gaps: optical insulators

2-D

periodic intwo directions

3-D

periodic inthree directions

1-D

periodic inone direction

Cristais Fotnicos


7/39

Planewave

k

for most l, beam(s) propagate through crystal withoutscattering (scattering cancels coherently)

...but for some l(~ 2a), no light can propagate: a photonic band gap

a

Cristais Fotnicos


8/39

Periodic Electromagnetic Media

with photonic band gaps: optical insulators

3D Pho to nic C rysta l with De fe c tscan trap light in cavities and waveguides(wires)

Cristais Fotnicos


9/39

1D

2D

3D

Cristais Fotnicos


10/39

Deep-etchedMacroporous silicon

2D with vertical

confinement:

High vertical refractive

index contrast,

e.g. membranes

or low vertical refractiveindex contrast

e.g. GaAs or InP.

Purely 2D:

a = 1.5 m

h = 100 m

Cristais Fotnicos


11/39

Cristais Fotnicos


12/39

Question :How can we understand Photonic Crystals?

Answer :Every Macroscopic Electromagnetic Phenomenoncan be understand by the Maxwell's Equations.

kxe kytransversal propagation constant

Cristais Fotnicos


13/39

Periodical Structures

Square

lattice

Triangular

Lattice

Brillouin irreductible

zone

Bloch-Floquet theorem

Cristais Fotnicos


14/39


Square

lattice

Brillouin

irreductible

zone

Cristais Fotnicos


15/39


Triangular

Lattice

Brillouin

irreductible

zone

Cristais Fotnicos


16/39

Porta Lgica AND

Y.-P. Yangetal./OpticsCommunications297(2013)165168

Fig. 1. Proposed photonic crystal logic AND gate


17/39

Porta Lgica AND


Fig. 5. Field evolutions of thedevice for (a) input(0,1), (b) input(1,0), and (c) input(1,1).


18/39

Porta Lgica AND


Fig. 5. Field evolutions of the device for (a) input(0,1), (b) input(1,0), and (c) input(1,1).


19/39

Porta Lgica AND

P. Rani et al. / Optics Communications 298299 (2013) 227

231

Fig. 1. Schematic of all-optical AND logic gate.


20/39

Porta Lgica AND


231

Fig. 7. Field distributions at steady state of the ANDlogicgate for(a) A=1, B=0; (b) A=0, B=1 and (c) A=1, B=1.


21/39

Porta Lgica AND


231


22/39

Puertas Lgicas XOR, XNOR, AND, OR

Fig. 7. Structure of logic model with XOR, XNOR, NAND and OR functions

W. Liu et al./Optics&LaserTechnology50(2013)5564

6.9 m6.7 m


23/39


24/39

Puertas Lgicas XOR, XNOR, AND, OR



25/39

Portas Lgicas XOR, XNOR, AND, OR

Fig. 13. (a), (b),(c)and(d)areschemasoflogicgatewithXOR,XNOR,NANDand ORlogicalfunctionsfordifferentBPSKsignals,respectively.



26/39




27/39


Fig. 14. Field distributions to show the performance of the proposed all-optical logic gate with XOR, XNOR, NAND and ORfunctions for different BPSK signals, respectively.



28/39


Fig. 17. Field distributions of the logic model with XOR function (a)(e) at =1550 nm



29/39

Portas Lgicas em Silcio

Fig. 1. Schematic structure of a two-dimensional silicon photonic crystal.

Y. Fu et al. / Physics Letters A 377 (2013) 329333


30/39


Fig. 2. Calculated steady state electric field distributions of all-optical OR gate. (a) Single signal light beam injected into

input port A. (b) Single signal light beam injected

into input port B. (c) Two single beams injected into input ports A and B, separately but simultaneously



31/39


Fig. 4. Calculated steady state electric field distributions of the NOT gate. (a) No signal light injected into input port A. (b)

Single signal light beam injected into input port A.



32/39


33/39


34/39

Portas Lgicas em Guias Convencionais

Yuhei Ishizaka et al, JOURNAL OF LIGHTWAVE TECHNOLOGY,

VOL. 29, NO. 18, SEPTEMBER 15, 2011


35/39


36/39

Infraestrutura

02 salas climatizadas (Lab 17 e 18, 4 andar DEE)

Algoritmos de simulao de propagao de ondas em 2D em ELEMENTOS FINITOS nodomnio da frequncia e do tempo.

03 PCs I78 Gb RAM

03 PCs I748 Gb RAM

01 PC I764 Gb RAM


37/39

Alunos de Ps-Graduao

Ana Jlia (Doutorado)Docente UnivasfPROPAGAO EM GUIAS EDISPOSITIVOS FOTNICOS NOCONVENCIONAIS

Anderson (Doutorado)

Bolsista FAPESBOTIMIZAO DE DISPOSITIVOS FOTNICOSE DE MICROONDAS UTILIZANDOCOMPUTAO BIO-INSPIRADA

Juarez (Doutorado)

Docente IFBAMODELAGEM DE GUIASPLASMNICOS

Joaquim (Doutorado)Bolsista FAPESB

NANOREFLETORES ENANOABSORVEDORES

Francismari (Mestrado)

Docente IFBAOTIMIZAO DE DISPOSITIVOSFOTONICOS USANDO COMPUTAOEVOLUTIVA

Bernardo (Mestrado)ATERMALIZAO DE DISPOSITIVOS

FOTNICOS

Davi (Mestrado)Docente IFBA eBolsista CAPESDIODOS E PORTAS LGICAS

Igor (Mestrado)Bolsista FAPESBGRADES DIELTRICASSUBMICROMTRICAS


38/39

Alunos de Graduao

Luana da Frana Vieira

Computao Bio-inspirada na Otimizao de Dispositivos Fotnicos

Rafael Rodrigues dos Santos Andrade

Tcnicas Hibridas na Otimizao de Dispositivos Fotnicos

Igor Maia Teles Ruffini

Modelagem e Projeto de Dispositivos Fotnicos Usando Redes Neurais

Gabriel Santa Barbara da Silva E SilvaEstudo de absorvedores baseados em Dispositivos Metamateriais

Scarlatt Vicente Freitas

Reflexo em Grades Peridicas de Subcomprimento de Onda

Joo Paulo de Azeredo Amaro

Efeitos Trmicos em Dispositivos Fotnicos

Patricia Martinez Kalil Nunez Teixeira

Aperfeioamento de Recursos Didticos Hipermdicos com Mathematica - EletromagnetismoAplicado

Priscila Oliveira de JesusDesenvolvimento de Recursos Didticos Hipermdicos com Mathematica - Fundamentos de Fotnica


39/39

Agradecimentos

Optical Photonic Gates

Documents

Transcript of Optical Photonic Gates