A scheme for high-quality nonlinear all-optical switches

Kang, Xiaoning; Li, Haidong; Wen, Li-Wei

doi:10.1016/j.ijleo.2017.01.033

Cited by 5 publications

(1 citation statement)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An approach of using the guiding layer and the GMR phenomena combined with optical switching is realized in ref. [30], a structure comprising of the PhCs-based cavities using the data signal and a pump signal of different intensities, which is investigated in ref. [31] using the PhCs-based couplers and directional couplers in refs.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Optical-Switching Mechanism Using Guided Mode Resonances

et al. 2022

View full text Add to dashboard Cite

Recently, photonic crystals have paved the way to control photonic signals. Therefore, this research numerically investigated the design of the optical switch using the guided-mode resonances in photonic crystals operating in a communication window around 1.55 μm. The design of the device is based on a dielectric slab waveguide to make it compatible with optical waveguides in photonic circuits. Moreover, two signals are used and are termed as the data signal and control signal. The data signal is coupled into the optical waveguide using an out-of-the-plane vertical coupling mechanism, whereas the control signal is index-guided into the optical waveguide to amplify the data signal. The switching parameters of the optical switch are adjusted by changing the number of the photonic crystal periods and implementing a varying radius PhC-cavity within the middle of the PhC-lattice, where the optical characteristics in terms of resonant wavelength, reflection peaks, linewidth, and quality factor of the data signal can be adjusted. The numerical simulations are carried out in open-source finite difference time domain-based software. Congruently, 7% optical amplification is achieved in the data signal with a wavelength shift of 0.011 μm and a quality factor of 12.64. The amplification of the data signal can be utilized to implement an optical switching mechanism. The device is easy to implement and has great potential to be used in programmable photonics and optical integrated circuits.

show abstract

Section: Introductionmentioning

confidence: 99%