[1] Han X, Chen X L, Xiong W et al. Vaccum optical tweezers system and its research progress in precision measurement[J]. Chinese Journal of Lasers, 48, 0401011(2021).
[2] Jesacher A, Fürhapter S, Bernet S et al. Spiral interferogram analysis[J]. Journal of the Optical Society of America A, 23, 1400-1409(2006).
[3] Fürhapter S, Jesacher A, Bernet S et al. Spiral phase contrast imaging in microscopy[J]. Optics Express, 13, 689-694(2005).
[4] Tamm C. Frequency locking of two transverse optical modes of a laser[J]. Physical Review A, 38, 5960-5963(1988).
[5] Shen Y J, Wan Z S, Fu X et al. Observation of spectral modulation coupled with broadband transverse-mode-locking in an Yb∶CALGO frequency-degenerate cavity[J]. Chinese Optics Letters, 17, 031404(2019).
[6] Gorbunkov M V, Kostryukov P V, Tunkin V G. Sharp focusing of superpositions of Hermite-Gaussian modes locked in fractionally degenerate cavity[J]. Laser Physics, 29, 115003(2019).
[7] Chen C H, Wei M D, Hsieh W F. Beam-propagation-dominant instability in an axially pumped solid-state laser near degenerate resonator configurations[J]. Journal of the Optical Society of America B, 18, 1076-1083(2001).
[8] Lu T H, Chen Y F, Huang K F. Spatial morphology of macroscopic superposition of three-dimensional coherent laser waves in degenerate cavities[J]. Physical Review A, 77, 013828(2008).
[9] Cheng Z D, Liu Z D, Luo X W et al. Degenerate cavity supporting more than 31 Laguerre-Gaussian modes[J]. Optics Letters, 42, 2042-2045(2017).
[10] Zhang Q, Ozygus B, Weber H. Degeneration effects in laser cavities[J]. The European Physical Journal Applied Physics, 6, 293-298(1999).
[11] Bezotosnyi V V, Cheshev E A, Gorbunkov M V et al. Manifestation of active medium astigmatism at transverse mode locking in a diode end-pumped stable resonator laser[J]. Applied Optics, 47, 3651-3657(2008).
[12] Bezotosnyi V V, Cheshev E A, Gorbunkov M V et al. Behavior of threshold pump power of diode end-pumped solid-state lasers in critical cavity configurations[J]. Laser Physics Letters, 12, 025001(2015).
[13] Liu K, Li Z, Guo H et al. Generation of high-order Hermite-Gaussian beams using a spatial light modulator[J]. Chinese Journal of Lasers, 47, 0905004(2020).
[14] Li P, Zhang S L, Wang S et al. High efficiency vortex beam generation by optimization of defect-spot mirror[J]. Chinese Journal of Lasers, 47, 0501005(2020).
[15] Liu Q, Pan J, Wan Z S et al. Generation methods for complex vortex structured light field[J]. Chinese Journal of Lasers, 47, 0500006(2020).
[16] Arnaud J A. Degenerate optical cavities[J]. Applied Optics, 8, 189-195(1969).
[17] Francia D G T. Proceedings of the symposium on optical masers[M], 157(1963).
[18] Tung J C, Tuan P H, Liang H C et al. Fractal frequency spectrum in laser resonators and three-dimensional geometric topology of optical coherent waves[J]. Physical Review A, 94, 023811(2016).