An improved optical parameter optimisation approach using Taguchi and genetic algorithm for high transmission optical filter design

Optik ◽  
2019 ◽  
Vol 182 ◽  
pp. 382-392 ◽  
Author(s):  
Sunita Parinam ◽  
Mukesh Kumar ◽  
Neelam Kumari ◽  
Vinod Karar ◽  
Amit L. Sharma
2002 ◽  
Vol 208 (1-3) ◽  
pp. 167-172 ◽  
Author(s):  
Silvia Abad ◽  
Manuel López-Amo ◽  
Sebastián Jarabo

Author(s):  
Sheikh Shanawaz Mostafa ◽  
Nuno Horta ◽  
Antonio G. Ravelo-García ◽  
Fernando Morgado-Dias

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Yongjin Liu ◽  
Xihong Chen ◽  
Yu Zhao

A prototype filter design for FBMC/OQAM systems is proposed in this study. The influence of both the channel estimation and the stop-band energy is taken into account in this method. An efficient preamble structure is proposed to improve the performance of channel estimation and save the frequency spectral efficiency. The reciprocal of the signal-to-interference plus noise ratio (RSINR) is derived to measure the influence of the prototype filter on channel estimation. After that, the process of prototype filter design is formulated as an optimization problem with constraint on the RSINR. To accelerate the convergence and obtain global optimal solution, an improved genetic algorithm is proposed. Especially, the History Network and pruning operator are adopted in this improved genetic algorithm. Simulation results demonstrate the validity and efficiency of the prototype filter designed in this study.


2015 ◽  
Vol 24 (03) ◽  
pp. 1550027 ◽  
Author(s):  
G. Rajalakshmi ◽  
A. Sivanantha Raja ◽  
D. Shanmuga Sundar

In this paper, the channel drop filter based on two dimensional photonic crystal is proposed. The structure is made of silicon rods with the refractive index n1 = 3.4641 which are perforated in air with refractive index n2 = 1. The simulation results are obtained using 2D finite difference time domain (FDTD) method. The photonic band gap is calculated by plane wave expansion solver method. Resonant mode of the ring resonator and the filter transmission spectrum is calculated using 2D FDTD method. Full width half maximum (FWHM) bandwidth of the filter at the output transmission spectrum from 1.508 μm to 1.512 μm is 4 nm. The quality factor of the filter is 377.5 and the proposed filter design is around 21 × 15 μm which is suitable for photonic integrated circuits.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 8251-8261
Author(s):  
Junhui Zhao ◽  
Siying Lv ◽  
Lihua Yang ◽  
Shanjin Ni

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