Wideband compact 2D photonic crystal switch based on ferrite resonator in square lattice with 90° bending

2015 ◽  
Vol 58 (1) ◽  
pp. 238-242 ◽  
Author(s):  
Victor Dmitriev ◽  
Daimam Zimmer ◽  
Gianni Portela
Keyword(s):  
Photonic Crystal ◽  
Square Lattice ◽  
Ferrite Resonator

Proposal for dispersion compensating square-lattice photonic crystal fiber

2021 ◽  
Vol 17 (3) ◽  
pp. 160-164
Author(s):  
Ashraful Hossain Howlader ◽  
Md. Sherajul Islam ◽  
S. M. A. Razzak
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Square Lattice ◽  
Crystal Fiber

Double-core photonic crystal fiber with square lattice

2004 ◽  
Author(s):  
Ryszard Buczynski ◽  
Przemyslaw Szarniak ◽  
Dariusz Pysz ◽  
Ireneusz Kujawa ◽  
Ryszard Stepien ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Square Lattice ◽  
Crystal Fiber

Design of two miniaturized and broadband polarization filters based on two types of square-lattice gold-filled photonic crystal fibers

2021 ◽  
Vol 61 ◽  
pp. 102454
Author(s):  
Linghong Jiang ◽  
Chao Wang ◽  
Jinhong Zou ◽  
YinPu Zhang ◽  
Yuefeng Qi ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibers ◽  
Square Lattice ◽  
Crystal Fibers

scholarly journals Unidirectional Slow Light Transmission in Heterostructure Photonic Crystal Waveguide

2018 ◽  
Vol 8 (10) ◽  
pp. 1858 ◽  
Author(s):  
Qiuyue Zhang ◽  
Xun Li
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
Environmental Changes ◽  
Light Transmission ◽  
Square Lattice ◽  
Manufacturing Defects ◽  
Interfacial Defects ◽  
Waveguide Design ◽  
Light Waveguide ◽  
Backward Propagation

In conventional photonic crystal systems, extrinsic scattering resulting from random manufacturing defects or environmental changes is a major source of loss that causes performance degradation, and the backscattering loss is amplified as the group velocity slows down. In order to overcome the limitations in slow light systems, we propose a backscattering-immune slow light waveguide design. The waveguide is based on an interface between a square lattice of magneto-optical photonic crystal with precisely tailored rod radii of the first two rows and a titled 45 degrees square lattice of Alumina photonic crystal with an aligned band gap. High group indices of 77, 68, 64, and 60 with the normalized frequency bandwidths of 0.444%, 0.481%, 0.485%, and 0.491% are obtained, respectively. The corresponding normalized delay-bandwidth products remain around 0.32 for all cases, which are higher than previously reported works based on rod radius adjustment. The robustness for the edge modes against different types of interfacial defects is observed for the lack of backward propagation modes at the same frequencies as the unidirectional edge modes. Furthermore, the transmission direction can be controlled by the sign of the externally applied magnetic field normal to the plane.

Slow light engineering in polyatomic photonic crystal waveguides based on square lattice

2011 ◽  
Vol 284 (24) ◽  
pp. 5829-5832 ◽  
Author(s):  
Daobin Wang ◽  
Jie Zhang ◽  
Lihua Yuan ◽  
Jingli Lei ◽  
Sai Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Slow Light ◽  
Square Lattice ◽  
Photonic Crystal Waveguides

T-shaped optical circulator based on coupled magneto-optical rods and a side-coupled cavity in a square-lattice photonic crystal

2012 ◽  
Vol 376 (4) ◽  
pp. 646-649 ◽  
Author(s):  
Qiong Wang ◽  
Zhengbiao Ouyang ◽  
Keyu Tao ◽  
Mi Lin ◽  
Shuangchen Ruan
Keyword(s):  
Photonic Crystal ◽  
Square Lattice ◽  
Optical Circulator ◽  
Coupled Cavity

Design of a High-Quality Optical Filter Based on 2D Photonic Crystal Ring Resonator for WDM Systems

2020 ◽  
Vol 41 (4) ◽  
pp. 355-361
Author(s):  
Vahid Fallahi ◽  
Mahmood Seifouri
Keyword(s):  
Photonic Crystal ◽  
Quality Factor ◽  
Transmission Coefficient ◽  
Lattice Constant ◽  
Ring Resonator ◽  
Photonic Band Gap ◽  
Structural Parameters ◽  
Optical Filter ◽  
Expansion Method ◽  
Square Lattice

AbstractIn this article, a 2D photonic crystal (PC)-based optical filter has been designed using a PC ring resonator. The resonator used is of square type with a square lattice constant, which has been designed by increasing the radius of the inner rods of the resonator. The filter designed can separate the light of the wavelength of 1545.3 nm with a transmission coefficient of 98 %. The bandwidth of the above wavelength is equal to 0.5 nm and hence the quality factor of the device at this wavelength is equal to 3091. The effects of the structural parameters, such as the refractive index, the lattice constant, the radius of the dielectric rods, the radius of the inner rods of the resonator on the behavior of the proposed device, are fully investigated. To obtain the photonic band gap, the plane wave expansion method is used. In addition, the finite difference time domain method is used to examine, simulate, and to obtain the output spectrum of the structure. The designed structure has both high transmission coefficient and quality factor. Comparatively speaking, it is also simple to design which justifies its use in other photonic crystal-based optical devices.

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