scholarly journals Realisation of Pressure Sensor using one Dimensional Indium Arsenide (InAs) Based Photonic Waveguide in 3 Communication Windows

2021 ◽  
Author(s):  
CHANDRA SEKHAR MISHRA ◽  
Manas Ranjan Nayak ◽  
Rajesh Arunachalam ◽  
Gopinath Palai
Keyword(s):  
Indium Arsenide ◽  
Optical Communication ◽  
Pressure Sensor ◽  
Propagation Loss ◽  
Photonic Crystal Waveguide ◽  
Photonic Structure ◽  
Diffraction Loss ◽  
One Dimensional ◽  
Excellent Outcome ◽  
Transmitted Signal

Abstract Indium arsenide (InAs) based one dimensional photonic crystal waveguide is cautiously considered in three optical communication windows. Here, the emerging transmitted signal from one dimensional photonic structure is determined with the consideration of five types of losses (diffraction loss, reflection loss, absorption loss, propagation loss, polarisation loss). Further, the transmitted signal is obtained with respect to pressure, which ranges from 0 GPa to 5 GPa for different lattice constant of photonic structure (100 nm, 120 nm, 140 nm). Simulation upshots revealed that indium arsenide semiconductor based photonic waveguide shows an excellent outcome for pressure sensor in the three optical windows as well as different waveguide lengths.

Enhanced Performances of SAC-OCDMA System by Using Polarization Encoding

2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Ahmed Garadi ◽  
Boubakar S. Bouazza ◽  
Abdelkader Bouarfa ◽  
Khansae Meddah
Keyword(s):  
Optical Communication ◽  
Bit Error Rate ◽  
Multiple Access ◽  
Cross Correlation ◽  
Spectral Amplitude ◽  
Orthogonal Polarization ◽  
Optical Communication System ◽  
One Dimensional ◽  
Polarization Encoding ◽  
The One

Abstract This article presents a novel encoder technique of spectral amplitude coded multiple access (SAC-OCDMA) systems. The proposed technique is based on two orthogonal polarization states of the same one dimensional optical code. This method is usually applied to increase the number of simultaneous users in a network, and it can double the number of potential users against the one-dimensional code. The results obtained in this work show that optical zero cross-correlation code can accommodate more users simultaneously for the typical bit error rate of optical communication system of ${\ }{10^{ - 9}}$ .

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.

scholarly journals Realization of Twenty Monochromatic Beams using Photonic Structure via Principle of Filtering

2021 ◽  
Author(s):  
K.P. Swain ◽  
Subhankar Das ◽  
Soumya Ranjan Samal ◽  
Sanjay Kumar Sahu ◽  
Gopinath Palai
Keyword(s):  
Wave Equations ◽  
Silicon Monoxide ◽  
Expansion Method ◽  
Critical Parameters ◽  
Infrared Range ◽  
Photonic Structure ◽  
Plane Wave Expansion Method ◽  
One Dimensional ◽  
Different Types ◽  
Silicon Based

Abstract The current work employs silicon-based one dimensional photonic structure which delivers ‘20’ different types of monochromatic beams (wavelengths) via filtering action. The I/P signals are essentially varies from visible to short infrared range to justify the work. Though similar type of works related to filtering application are found in the literature, the present research deals with an output signal which could be deployed in different purposes vis-à-vis dentistry, dermatology, spectroscopy, printing, holography, barcode scanning etc. The physicality of this work incorporates 68 layers of silicon monoxide and silicon based one-dimensional optical waveguide along with their configuration where the plane wave expansion method does fulfill the nitty-gritty of required mathematics to solve out electromagnetic wave equations. Reflectance and transmittance characteristics along with the absorbance are the critical parameters that substantiate the said application.

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