Xueyan Dong, Pingxue Li, Shun Li, Tingting Wang, Min Yang. High Beam Quality Fiber-Solid Hybrid Innoslab Picosecond Amplifier with High Repetition Rate[J]. Chinese Journal of Lasers, 2021, 48(17): 1701004
- Chinese Journal of Lasers
- Vol. 48, Issue 17, 1701004 (2021)
Fig. 1. Slab crystal diagram
Fig. 2. Relationship between gain and number of amplifications
Fig. 3. Equivalent cavity with thermal lens in y-z plane
Fig. 4. Spot after shaping pump light by ZEMAX software
Fig. 5. Simulation results. (a) Importing the ZEMAX laser source into the COMSOL model; (b) temperature field distribution of slab crystal
Fig. 6. Focal lengths of the Nd∶YVO4 slab crystal thermal lens with different pump powers
Fig. 7. Spherical aberration coefficient changes after the seed light passes through lens with positive spherical aberration
Fig. 8. Design of Innoslab amplifier based on spherical aberration self-compensation
Fig. 9. Optical pathway of the Innoslab amplifier is simulated by ZEMAX
Fig. 10. Diagram of optical path structure of laser system
Fig. 11. Schematic diagram. (a) Heat sink structure of Innoslab amplifier; (b) double sides welding of slab crystal
Fig. 12. Mode-locked pulse sequence diagram of oscillator
Fig. 13. Overlap area between the seed light of Innoslab slab amplifier and slab crystal. (a) Six-passing slab amplifier; (b) eight-passing slab amplifier
Fig. 14. Relationship between pump power and output optical power
Fig. 15. Pulse width curve of Innoslab amplifier
Fig. 16. Output spectrum of Innoslab amplifier
Fig. 17. Beam quality and spot profile with maximum output power of Innoslab amplifier
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