Xue CAO, Feng LI, Hualong ZHAO, Yishan WANG, Wei ZHOU, Deyuan SHEN. High Power Single Crystal Fiber Ultrashort Pulse Amplification Technology（Invited）[J]. Acta Photonica Sinica, 2022, 51(8): 0851513
- Acta Photonica Sinica
- Vol. 51, Issue 8, 0851513 (2022)
Fig. 1. Schematic diagram of laser principle of two kinds of single crystal fiber［11］
Fig. 2. Schematic diagram of LHPG method［13］
Fig. 3. Diameter control feedback system of laser heated pedestal ［24］
Fig. 4. Single crystal fiber grown at NRL research institute［28］
Fig. 5. Single crystal fiber growing equipments of Shandong University
Fig. 6. Growth diagram of μ-PD method
Fig. 7. Various crystals grown by μ-PD method
Fig. 8. Schematic diagram of EFG method［51］
Fig. 9. Schematic diagram of CDLHPG system［53］
Fig. 10. Ti：Al2O3 single crystal fiber［54］
Fig. 11. Cladding flexible "C4" Yb：YAG single crystal fiber［27］
Fig. 12. Preparation of claddings by magnetron sputtering［55］
Fig. 13. The absorption spectrum and emission spectrum of Yb：YAG crystal［57］
Fig. 14. Direct Femtosecond amplification structure of double-pass single crystal fiber［58］
Fig. 15. The structure of high power oscillator based on Yb：YAG single crystal fiber［59］
Fig. 16. Double pass chirped pulse amplification system of single crystal fiber［60］
Fig. 17. High energy ultra-short pulse amplification system by coherent beam combination of two single crystal fibers［61］
Fig. 18. Direct high power femtosecond amplification system based on single crystal fiber［62］
Fig. 19. Schematic of hybrid single crystal fiber and Yb：YAG thin-rod two-stage amplification system［64］
Fig. 20. High power ultra-short pulse amplification system based on three-stage single crystal fiber［65］
Fig. 21. Single-crystal fiber amplification system based on two cascades［66］
Fig. 22. The schematic diagram of high energy chirped pulse amplification system［68］
Fig. 23. Hybrid high power chirped pulse amplification system based on silicate glass fiber-single crystal fiber amplifier［69］
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Table 1. Crystals prepared by μ -PD
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