Chen Tianjiang, Wang Feng, Li Xinyang, Lu Yanhua, Luo Xi. Return Intensity of Sodium Guide Star Based on Pumping Under Multiple Laser Parameters[J]. Chinese Journal of Lasers, 2020, 47(8): 801001
- Chinese Journal of Lasers
- Vol. 47, Issue 8, 801001 (2020)
Fig. 1. Hyperfine energy-level structure of D2 line
Fig. 2. Absorption spectrum of sodium atom for D2 lines
Fig. 3. Return light intensity versus guide star laser line width under different pumping pulsed laser energies
Fig. 4. Schematic of experimental system for synchronous detection of return light intensity of sodium guide star
Fig. 5. Typical single-frame retroreflective dot-matrix plane and sectional view of sodium guide stars. (a) Single-frame retroreflective dot-matrix plane of sodium guide stars; (b) sectional view of sodium guide stars
Fig. 6. Intensities of return light in polarizationpump experiment
Fig. 7. Return light intensities under different conditions
Fig. 8. Experimental data for spectral line broadening under double-line pumping condition
Fig. 9. Schematic of multi-longitudinal mode laser spectral broadening under double-line pumping mode. (a) Without broadening; (b) with broadening
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