Chalcogenide Photonic Crystal Filters For Optical Communication

2011 ◽  
Author(s):  
B. Suthar ◽  
A. Bhargava ◽  
S. K. Tripathi ◽  
Keya Dharamvir ◽  
Ranjan Kumar ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Communication

Dispersion Compensating Square Photonic Crystal Fiber for Optical Communication Systems

2009 ◽  
Vol 129 (4) ◽  
pp. 601-607
Author(s):  
Shubi F. Kaijage ◽  
Yoshinori Namihira ◽  
Nguyen H. Hai ◽  
Feroza Begum ◽  
S. M. Abdur Razzak ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Optical Communication ◽  
Communication Systems ◽  
Crystal Fiber ◽  
Optical Communication Systems

Relationship Between Distance of Photonic Crystal Rods Array and Wavelength of Light Propagating in Right-Angular, Cross, and Y-Shapes Waveguide

2008 ◽  
Author(s):  
Meng-Ju Lin
Keyword(s):  
Neural Network ◽  
Photonic Crystal ◽  
Optical Communication ◽  
Complex Geometry ◽  
Numerical Data ◽  
Neural Network Method ◽  
Bifurcation Phenomena ◽  
Network Method ◽  
Physical Phenomena ◽  
The Relationship

Photonic crystal is widely used in optical communication. Waveguide is one of important components used in optical communication. The performance of right-angular, cross, and Y shapes photonic crystal waveguide used in optical communication is investigated. Material used for photonic crystal is GaAs. Shape of photonic crystal rod is cylindrical rod. These rods are arranged to become matrix with constant distance. In the photonic crystal matrix, some rods are removed to form waveguide channel. Three shapes of waveguides are discussed. They are right-angular, cross, and Y shapes. The relationship between distances of circular photonic crystals and wavelength in propagation is discussed. Due to coupling of multi physical phenomena and complex geometry, a finite element method software called COMOSL is used to analyze performance of waveguide under different wavelength of light. It is found under different distance of photonic crystal rods array and wavelength, light could propagate along waveguide successfully or lost energy and decay. From results analyzed by COSMOL software, numerical data are obtained to classify light being able to pass waveguide successfully or not. By neural network method, equations between crystal rods array distance and wavelength to decide whether light can propagate through waveguide successfully or not are derived. They can be used to determine performance of light propagating in waveguide. For Y shape waveguide, bifurcation phenomena of light propagate in different channel of Y shape branch is found. It is found under different crystal pillar distance the light of different wavelength would propagate in one of the branch of the Y shape channel. The longer wavelength lights pass the upper channel and the shorter pass the lower. The results show that the bifurcation happens at the tendency if pillar distance increases the bifurcation wavelength also increases. From neural network method, equations to decide light propagate to upper or lower branch of Y shape waveguides are also obtained.

Broadband Dispersion Compensating Octagonal Photonic Crystal Fiber for Optical Communication Applications

2009 ◽  
Vol 48 (5) ◽  
pp. 052401 ◽  
Author(s):  
Shubi F. Kaijage ◽  
Yoshinori Namihira ◽  
Nguyen H. Hai ◽  
Feroza Begum ◽  
S. M. Abdur Razzak ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fiber ◽  
Optical Communication ◽  
Crystal Fiber

Fabrication of Three-Dimensional Photonic Crystal by Wafer Fusion Approach

2001 ◽  
Vol 681 ◽  
Author(s):  
Noritsugu Yamamoto ◽  
Katsuhiro Tomoda ◽  
Susumu Noda
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Optical Communication ◽  
Three Dimensional ◽  
Optoelectronic Devices ◽  
Photonic Crystal Waveguide ◽  
Wafer Fusion ◽  
Dimensional Photonic Crystal ◽  
Alignment System ◽  
Fusion Approach

ABSTRACTBased on a set of requirements identified for photonic crystals intended for use in optoelectronic devices, we have developed a method of fabricating three-dimensional photonic crystals that involves stacking air/semiconductor gratings by wafer fusion approach. Precise alignment of the stacked layers is achieved through the use of a laser beam assisted very precise alignment system, and three-dimensional photonic crystal has been successfully fabricated for the infrared and optical communication wavelength regions. We have also developed a photonic crystal waveguide providing sharp 90° bend.

Sign in / Sign up

Export Citation Format

Share Document