| Presentation | 2002/11/8 Adaptive on-line Frequency Stabilization System for High Output Power Laser Diodes based on Genetic Algorithm Shintaro HISATAKE, Naoto HAMAGUCHI, Takahiro KAWAMOTO, Wakao SASAKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a frequency stabilization system for laser diodes (LD's), in which the electrical feedback loop response can be determined by on-line genetic algorithm (GA) so as to attain lower LD frequency noise power within the specific Fourier frequency range of interest. At the initial stage of the stabilization, the feedback loop response has been controlled through GA, manipulating the proportional gain, integration time, and derivative time of conventional analog PID controller. Individuals having 12-bit chromosomes encoded by combinations of PID parameters have converged evolutionarily toward an optimal solution providing suitable feedback loop response. A fitness function has been calculated for each individual in real-time basis based on the power spectral density (PSD) of the frequency noise. The performance of this system has been tested through stabilizing a 50 mW visible LD. Long-term (τ > 0.01s) frequency stability and its repeatability have been improved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | frequency stabilization / laser diode / negative electrical feedback / genetic algorithm |
| Paper # | LQE2002-154 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2002/11/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive on-line Frequency Stabilization System for High Output Power Laser Diodes based on Genetic Algorithm |
| Sub Title (in English) | |
| Keyword(1) | frequency stabilization |
| Keyword(2) | laser diode |
| Keyword(3) | negative electrical feedback |
| Keyword(4) | genetic algorithm |
| 1st Author's Name | Shintaro HISATAKE |
| 1st Author's Affiliation | Faculty of Engineering, Doshisha University() |
| 2nd Author's Name | Naoto HAMAGUCHI |
| 2nd Author's Affiliation | Faculty of Engineering, Doshisha University |
| 3rd Author's Name | Takahiro KAWAMOTO |
| 3rd Author's Affiliation | Faculty of Engineering, Doshisha University |
| 4th Author's Name | Wakao SASAKI |
| 4th Author's Affiliation | Faculty of Engineering, Doshisha University |
| Date | 2002/11/8 |
| Paper # | LQE2002-154 |
| Volume (vol) | vol.102 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |