Optimal design of segmented quasi-phase-matching SHG+DFG wavelength conversion structure based on hybrid genetic algorithm

2014 ◽  
Author(s):  
Lao Liu ◽  
Jie Cui
Keyword(s):  
Genetic Algorithm ◽  
Optimal Design ◽  
Wavelength Conversion ◽  
Hybrid Genetic Algorithm ◽  
Phase Matching ◽  
Quasi Phase Matching

Optimal design and applications for quasi-phase-matching three-wave mixing

2002 ◽  
Vol 38 (9) ◽  
pp. 1225-1233 ◽  
Author(s):  
Xueming Liu ◽  
Hanyi Zhang ◽  
Yili Guo ◽  
Yanhe Li
Keyword(s):  
Optimal Design ◽  
Phase Matching ◽  
Wave Mixing ◽  
Quasi Phase Matching

Improved Genetic Algorithms Based Optimal Design of The Shuangji River Aqueduct

2011 ◽  
Vol 201-203 ◽  
pp. 1288-1291
Author(s):  
Xin Li Bai ◽  
Wei Yu ◽  
Dan Fei Wang ◽  
Yuan Yuan Fan
Keyword(s):  
Genetic Algorithm ◽  
Optimal Design ◽  
Structural Optimization ◽  
Large Scale ◽  
Hybrid Genetic Algorithm ◽  
Computer Software ◽  
Search Method ◽  
Discrete Variables ◽  
Original Design ◽  
Design Plan

The simple genetic algorithm (SGA) is taken as the global search method, and the traditional direct search method for mixed-discrete variables as the local search method. The improved (hybrid) genetic algorithm (IGA) is obtained by improving the SGA. And through the introduction of penalty constraints, the problem dealing with the constraints in GA is successfully resolved. A mathematical model for structural optimization of aqueduct is established, and computer software is developed for structural optimization of large-scale aqueduct based on IGA. Using this program, the Shuangji River aqueduct is optimized and Rectangle-sectioned aqueduct design plan is obtained. Compared with the original design plan, optimal design is very economical and was adopted by Design Institute.

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