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- Title
Designing ultra-fast all-optical full-subtractor using the photonic crystal structure.
- Authors
PAKRAI, FOROGH; SOROOSH, MOHAMMAD; GANJI, JABBAR
- Abstract
In this paper, a photonic crystal-based structure for an all-optical full-subtractor has been proposed. The structure includes six nonlinear resonant rings to transmit the incoming optical waves toward the output ports. Using the different radii for nonlinear rods made the possibility of the dropping operation for different amounts of optical intensities. The nonlinear rods are made of a doped-glass with an optical Kerr coefficient of 10-15 m²/W. To calculate the components of the optical waves throughout the structure, the finite-difference time-domain method has been used. The simulation results prove the correct functionality of the proposed structure. Besides, the maximum rise time of the device is equal to 2 ps. The contrast ratio and the area of the structure are around 8.08 dB and 2790 µm², respectively.
- Subjects
PHOTONIC crystals; FINITE difference time domain method; CRYSTAL structure; AUTOMATIC timers; KERR electro-optical effect; HARBORS
- Publication
Optica Applicata, 2023, Vol 53, Issue 1, p99
- ISSN
0078-5466
- Publication type
Article
- DOI
10.37190/oa230107