Qingyu Yan, Yu Miao, Qiuyang Song, Xu Mingzhu, Guanxue Wang, Xiumin Gao. Characteristic Analysis and Research Progress of Vortex Beam Produced by Optical Microcavity[J]. Laser & Optoelectronics Progress, 2022, 59(1): 0100002
- Laser & Optoelectronics Progress
- Vol. 59, Issue 1, 0100002 (2022)
![Photonic crystal microcavity[31]. (a) Point defect structure; (b) mode field distribution](/richHtml/lop/2022/59/1/0100002/img_1.jpg)
Fig. 1. Photonic crystal microcavity[31]. (a) Point defect structure; (b) mode field distribution
![Design of single-mode vortex beam laser [36]. (a) Device structure diagram; (b) laser emission spectrum](/richHtml/lop/2022/59/1/0100002/img_2.jpg)
Fig. 2. Design of single-mode vortex beam laser [36]. (a) Device structure diagram; (b) laser emission spectrum
![High-speed direct-tuning radial cylindrical vector OAM beam laser[38]. (a) Device structure design; (b) output power](/Images/icon/loading.gif){kind=icon}
Fig. 3. High-speed direct-tuning radial cylindrical vector OAM beam laser[38]. (a) Device structure design; (b) output power
Fig. 4. 1550-nm photonic crystal laser[27]
Fig. 5. Two-dimensional flat photonic crystal microcavity laser [41]. (a) Nanometer laser array; (b) laser spectra of lasers with and without nanoparticles
Fig. 6. Microring resonator OAM beam transmitter[44]. (a) Microring resonator with angle grating; (b) transmitter array structure; (c) near-field mode intensity emitted by the array
Fig. 7. On-chip modulated OAM beam[46]. (a) Schematic of OAM integrated device; (b) emission spectrum; (c) OAM intensity distribution under different modal phase shift conditions
Fig. 8. Vortex beam emitting device[51]. (a) Structure diagram; (b) three types of lattice structures; (c) generated beam
Fig. 9. Three-dimensional photonic crystal superimposes point defects to produce vortex beam[52]. (a) Structure diagram; (b) generated two-order OAM beam
Fig. 10. Dynamic control of OAM superposition state device[53]. (a) Device structure diagram; (b) coupling power of concentric microring cavity; (c) output power of superposition state beam
Fig. 11. Tunable OAM laser[55]. (a) Structure diagram; (b) output power
Fig. 12. Microring cavity superimposed grating emitting vortex beam[58]. (a) Superimposed grating structure; (b) experimental setup
Fig. 13. Vortex beam emitting device[62]. (a) Structure diagram; (b) calculation curves of related parameters in TE mode and TM mode, inset is schematic of the center line offset of the etching grating; (c) near-field intensity and polarization purity of emitted beam
Fig. 14. High-speed emission cylindrical vector beam laser[63]. (a) Relationship between Q and azimuth modulus of WGMs; (b) near-field and far-field distribution of beams
Fig. 15. Vortex beam transmitter integrated by microring resonantor and metal mirror[66]. (a) Structure diagram; (b) emission efficiency
Fig. 16. Multi-point defect photonic crystal microcavity laser[31]. (a) Multi-point defects produce vector vortex beams; (b) schematic of enlarged pore radius around the defect; (c) near-field intensity distribution(after enlarging the pore radius around the defect)
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