Dr. Qi Chang Profile

Dr. Qi Chang

at National Univ of Defense Technology

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Author

Publications (7)

Proceedings Article | 28 December 2022 Presentation + Paper

Research on the effect of image noise on non-iterative fast mode decomposition technique in high-power fiber lasers

Yu Deng, Qi Chang, Tianyue Hou, Pengfei Ma, Pu Zhou

Proceedings Volume 12310, 1231004 (2022) https://doi.org/10.1117/12.2644114

KEYWORDS: Modal decomposition, Matrices, Signal to noise ratio, High power fiber lasers, Condition numbers, Fiber lasers, Stochastic processes, Tunable filters, Neural networks, Multimode fibers

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Proceedings Article | 15 November 2022 Paper

Customizing optical vortex beams array by coherent beam combining technique

Jinhu Long, Xiao Chen, Tianyue Hou, Qi Chang, Jiayi Zhang, Rongtao Su, Yanxing Ma, Pengfei Ma, Pu Zhou

Proceedings Volume 12448, 1244804 (2022) https://doi.org/10.1117/12.2626274

KEYWORDS: Coherent beam combination, Optical vortices, Spatial light modulators, Phase shift keying, Structured light, Phase modulation, Optical arrays

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Proceedings Article | 4 March 2022 Presentation + Paper

Deep-learning-based coherent fiber laser array system for power scaling and spatial light structuring

Tianyue Hou, Yi An, Qi Chang, Pengfei Ma, Jun Li, Pu Zhou

Proceedings Volume 11981, 119810F (2022) https://doi.org/10.1117/12.2614657

KEYWORDS: Fiber lasers, Laser systems engineering, Control systems, Phase shift keying, Error analysis, Modulation, Structured light, Spiral phase plates, Spatial light modulators, Optimization (mathematics)

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Proceedings Article | 9 October 2021 Paper

Wavefront aberration mitigation with adaptive distributed aperture fiber array lasers

Jinhu Long, Kaikai Jin, Tianyue Hou, Qi Chang, Rongtao Su, Yanxing Ma, Pengfei Ma, Jian Wu, Pu Zhou

Proceedings Volume 11890, 1189008 (2021) https://doi.org/10.1117/12.2601979

KEYWORDS: Coherent beam combination, Phased arrays, Fiber lasers, Fiber amplifiers, Wavefront aberrations, Atmospheric turbulence

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Proceedings Article | 5 November 2020 Paper

Coherently combining of fiber lasers based on two-stage phase control

Jinhu Long, Rongtao Su, Qi Chang, Hongxiang Chang, Yanxing Ma, Pengfei Ma, Jian Wu, Pu Zhou, Lei Si

Proceedings Volume 11562, 115620Y (2020) https://doi.org/10.1117/12.2580027

KEYWORDS: Control systems, Fiber lasers, Phase shift keying, Beam splitters, Phase modulation, Liquid crystals, Fiber amplifiers, Atmospheric turbulence

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Proceedings Article | 18 December 2019 Paper

Coherent beam combination based on particle swarm optimization algorithm

Qi Chang, Rongtao Su, Tianyue Hou, Pengfei Ma, Yanxing Ma, Pu Zhou

Proceedings Volume 11333, 1133319 (2019) https://doi.org/10.1117/12.2547894

KEYWORDS: Particle swarm optimization, Particles, Control systems, Coherent beam combination, Fiber lasers, Computer simulations, Optimization (mathematics), Phase modulation

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Proceedings Article | 18 December 2019 Paper

Adaptive temporal shape control of fiber laser

Hongxiang Chang, Rongtao Su, Qi Chang, Tianyue Hou, Yanxing Ma, Pengfei Ma, Pu Zhou

Proceedings Volume 11333, 1133315 (2019) https://doi.org/10.1117/12.2547662

KEYWORDS: Adaptive control, Fiber lasers, Fiber amplifiers, Beam controllers, Feedback control, Amplifiers, Pulsed laser operation, Pulsed fiber lasers, Optimization (mathematics), Plutonium

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Showing 5 of 7 publications

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