.A new automatic alignment technology for single mode fiber-waveguide based on improved genetic algorithm[J].Optoelectronics Letters,2009,5(3):165-168 A new automatic alignment technology for single mode fiber-waveguide based on improved genetic algorithm 郑煜  陈庄庄  李雅娟  段吉安 Key Laboratory of Design for Modern Complex Equipment and Extreme Manufacturing, Ministry of Education of China,Central South University, Changsha 410083, China ? Abstract:       A novel automatic alignment algorithm of single mode fiber-waveguide based on improved genetic algorithm is proposed. The genetic searching is based on the dynamic crossover operator and the adaptive mutation operator to solve the premature convergence of simple genetic algorithm The improved genetic algorithm combines with hill-climbing method and pattern searching algorithm, to solve low precision of simple genetic algorithm in later searching. The simulation results indicate that the improved genetic algorithm can rise the alignment precision and reach the coupling loss of 0.01 dB when platform moves near 207 space points averagely. Hits: 3849 Download times: 204 View Full Text    Download reader