Simulation of two photon absorption in silicon wire waveguide for implementation of all optical logic gates

Mukherjee, Kousik; Kumbhakar, Dharmadas

doi:10.1016/j.ijleo.2011.05.012

Cited by 12 publications

(9 citation statements)

References 14 publications

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“…High index contrast waveguides, such as AlGaAs and silicon have been a major focus of nonlinear optics during the last few years because of their ability to enhance nonlinear effects greatly by confining light in a small volume. Silicon has a large third order nonlinear coefficient (n 2 = 6 × 10 −18 m 2 /W).…”

Section: Applications Of the Aligmentioning

confidence: 99%

Augmented low index waveguide for confining light in low index media

Alam

Sun

Mojahedi

et al. 2017

Laser & Photonics Reviews

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Guiding light in the low index region of a high refractive index contrast waveguide can be beneficial for many applications including sensing, nonlinear optics and electro‐optics. Existing methods to achieve this goal suffer from fabrication complexity, large loss, or poor optical confinement. We propose a simple structure to achieve a significant enhancement of light confinement in the low index medium. We explain the guiding principle of this structure using geometrical optics, and suggest a number of applications where this guiding structure can provide significant performance benefits. The combination of simplicity, ease of fabrication, and good confinement makes this waveguide an attractive choice for a wide range of applications. To illustrate this, we consider the integration of a nonlinear polymer with a silicon photonic waveguide, and show that significantly better performance with an easier fabrication process can be achieved using this new scheme.

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Section: Applications Of the Aligmentioning

confidence: 99%

Augmented low index waveguide for confining light in low index media

Alam

Sun

Mojahedi

et al. 2017

Laser & Photonics Reviews

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show abstract

“…While travelling through the waveguide they experience two photon absorption which gives rise to the cross gain modulation. By adjusting the proper power of the pump and probe pulse we can get the results [14].…”

Section: Waveguide Configuration In the Design Ofmentioning

confidence: 99%

All-Optical Logic Gates: Designs, Classification, and Comparison

Singh

Tripathi

Jaiswal³

et al. 2014

Advances in Optical Technologies

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The paper reviews the current status and designs of all-optical gates. Various schemes with and without semiconductor optical amplifiers are discussed and compared. The optical gates are classified according to their design structures. It is divided into two major divisions that is, nonsemiconductor optical amplifier based gates and semiconductor optical amplifier based gates. In nonsemiconductor optical amplifier based gates, different schemes have been proposed to create non-linearity which is discussed. The semiconductor optical amplifier based gates of different design structures are discussed to show the probe pulse that is modulated in different ways to obtain results.

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“…Further, based on the optical nonlinearities through band pass filter reconfigurable optical gate executed at 40 Gbps data rate [6]. Higher data rate all optical AND, NOT, NAND logic gates using two-photon absorption in silicon wire waveguide with of ultra short pulse was successfully explored [7]. Further, using terahertz optical asymmetric demultiplexer (TOAD)-based optical tree architecture (OTA) all optical logic gates investigated for the integrated arithmetic operations [8].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of the Optical AND Gate at 200 Gbps

Tripathi

2017

Journal of Optical Communications

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The article explores performance investigation for the all optical AND logic gate at the 200 Gbps data rate. Numerical simulations have been executed and output pattern for the AND logic operation has been verified. Accordingly good extinction ratio of 15.8 dB has been observed. Investigations depict optimum optical performance metric with the key deign parameters as the pump power (>1e-4 W), pump current (>1 Å), current injection efficiency (>0.5), modulator bias voltage (>1.25 V), modulator on off ratio (>10 dB) and the SOA reflectivity (>0 dB). The schematic is evident, simpler tender's option to endow different input combinations simultaneously. Furthermore, the outcomes are well sustainable to formulate forthcoming advanced higher data rate all-optical digital processing.

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Simulation of two photon absorption in silicon wire waveguide for implementation of all optical logic gates

Cited by 12 publications

References 14 publications

Augmented low index waveguide for confining light in low index media

Augmented low index waveguide for confining light in low index media

All-Optical Logic Gates: Designs, Classification, and Comparison

Performance Evaluation of the Optical AND Gate at 200 Gbps

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