Theoretical Analysis on Active Polarization Control of Fiber Laser Based on Root Mean Square Propagation Algorithm
Source abstract
Abstract
High-power linearly polarized fiber lasers are widely used in coherent beam combination, nonlinear frequency conversion, and gravitational wave detection. With the increase in output power, it is challenging for fiber lasers to maintain a high polarization extinction ratio (PER). Combined with intelligent techniques, active polarization control is a prospective method to obtain the laser output with high PER and high stability. We demonstrate a comprehensive model of an active polarization control system. The root mean square propagation (RMS-Prop) algorithm is used to control the non-polarization-maintaining (non-PM) fiber laser to generate linearly polarized laser. The parameters of the RMS-Prop algorithm are theoretically analyzed, including cost function, perturbation amplitude, and global learning rate. The simulation results show that PER is the optimal cost function. When the perturbation amplitude is 0.06 and the global learning rate is 0.6, the system can achieve the optimal control speed and accuracy. By comparison with the stochastic parallel gradient descent (SPGD) algorithm, the RMS-Prop algorithm has an advantage in obtaining higher PER.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced Fiber Optic Sensors · Photonic Crystal and Fiber Optics · Optical Network Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Wang Zhijiang Laser Innovation Center, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Funding
National Natural Science Foundation of China (NSFC)
References (27)
Show source-provided references
1. Development Status of High Power Fiber Lasers and Their Coherent Beam Combination10.1007/s11432-018-9742-0 ↗
2. Scalable Coherent Combining of Kilowatt Fiber Amplifiers Into a 2.4-kW Beam10.1109/JSTQE.2013.2296771 ↗
3. 10.4 kW Coherently Combined Ultrafast Fiber Laser10.1364/OL.392843 ↗
4. 321 W High-Efficiency Continuous-Wave Green Laser Produced by Single-Pass Frequency Doubling of Narrow-Linewidth Fiber Laser10.1364/AO.422514 ↗
5. 600 W Green and 300 W UV Light Generated from an Eight-Beam, Sub-Nanosecond Fiber Laser System10.1364/OL.42.003255 ↗
6. Single-Frequency Fiber Amplifiers for Next-Generation Gravitational Wave Detectors10.1109/JSTQE.2017.2759275 ↗
7. Polarization Effects in Fiber Raman and Brillouin Lasers10.1109/JQE.1979.1069913 ↗
8. Brar, K., Savage-Leuchs, M., Henrie, J., Courtney, S., Dilley, C., Afzal, R., and Honea, E. (2014). Threshold Power and Fiber Degradation Induced Modal Instabilities in High-Power Fiber Amplifiers Based on Large Mode Area Fibers. Fiber Lasers XI: Technology, Systems, and Applications, Proc. SPIE.10.1117/12.2042261 ↗
9. Thermal Induced Polarization Coupling in Double-Cladding Linearly Polarized Fiber Lasers10.1016/j.optcom.2022.128036 ↗
10. New Endless Polarization Control Method Using Three Fiber Squeezers10.1109/50.29630 ↗
11. Reset-Free Adaptive Polarization Controller on a Silicon-Photonic Platform for a Self-Coherent Communication System10.1364/OL.480516 ↗
12. CMOS-Compatible High-Speed Endless Automatic Polarization Controller10.1063/5.0198227 ↗
13. Active Phase and Polarization Locking of a 1.4 kW Fiber Amplifier10.1364/OL.35.001542 ↗
14. Carter, A.L., and Hartl, I. (2018). Up to 2.5-kW on Non-PM Fiber and 2.0-kW Linear Polarized on PM Fiber Narrow Linewidth CW Diffraction-Limited Fiber Amplifiers in All-Fiber Format. Fiber Lasers XV: Technology and Systems, SPIE.
15. Li, W., Zhang, X., You, B., and Zou, K.Y. (2008, January 21–22). Endless Polarization Control Based on Simulated Annealing Algorithm. Proceedings of the 2008 IEEE International Symposium on Knowledge Acquisition and Modeling Workshop, Wuhan, China.10.1109/KAMW.2008.4810479 ↗
16. A Novel Control Scheme for Four-Plate Retardation Polarization Controller10.1002/mop.24011 ↗
17. Fiber Polarization Control Based on a Fast Locating Algorithm10.1364/AO.52.006663 ↗
18. Research on Active Polarization Control System of Fiber Laser Based on a Mixed Genetic Algorithm and Simulated Annealing Algorithm10.3788/AOS202040.2314002 ↗
19. Fiber Laser Development Enabled by Machine Learning: Review and Prospect10.1186/s43074-022-00055-3 ↗
20. 6.5 GHz Linearly Polarized Kilowatt Fiber Amplifier Based on Active Polarization Control10.1364/AO.56.002760 ↗
21. Active Polarization Control of a 1.43 kW Narrow Linewidth Fiber Amplifier Based on SPGD Algorithm10.1088/2040-8986/aa5e04 ↗
22. 3.38 kW All-Fiberized Narrow Linewidth Fiber Laser Based on Active Polarization Control Using RMS-Prop Algorithm10.1016/j.optlastec.2023.109634 ↗
23. High-Power All-Fiber Linearly Polarized Yb-Doped Chirped Pulse Amplifier Based on Active Polarization Control10.3788/COL202422.041403 ↗
24. Progress in High-Power Narrow-Linewidth Fiber Lasers10.3788/LOP55.080002 ↗
25. Research on Stimulated Brillouin Scattering Suppression Based on Multi-Frequency Phase Modulation10.3788/COL20090701.0029 ↗
26. Zhang, Q., Zhu, Y., Su, Y., Wang, D., and Yang, L. (2012, January 29–31). Research on the Polarization Rotation Axis of Variable Retardation Plates Polarization Controller. Proceedings of the 2012 2nd International Conference on Computer Science and Network Technology, Changchun, China.
27. Theoretical and Experimental Research on Polarization Control of Fiber Laser Based on SPGD Algorithm10.3788/LOP55.090602 ↗