Jiao Wei, Pixian Jin, Xuechen Cao, Jing Su, Huadong Lu, Kunchi Peng. Direct generation of a stable multi-beam pulsed 355 nm UV laser based on a micro-lens array[J]. Chinese Optics Letters, 2022, 20(4): 041405
- Chinese Optics Letters
- Vol. 20, Issue 4, 041405 (2022)
Fig. 1. Schematic diagram of the designed pulsed 355 nm UV laser with four sub-beam output.
Fig. 2. (a) Microscopic images of MLA. (b) Size of the MLA and collimated laser beam.
Fig. 3. Beam profiles and intensity distribution of the attained four pulsed 355 nm UV laser sub-beams.
Fig. 4. Output powers of four pulsed 355 nm UV laser sub-beams versus the power of the fundamental-wave 1064 nm laser.
Fig. 5. Pulse width variations of the four 355 nm UV laser sub-beams and the pulse width at the maximal power. (a) Laser I, (b) Laser II, (c) Laser III, and (d) Laser IV.
Fig. 6. M2 of every sub-beam of the generated pulsed 355 nm UV laser.
Fig. 7. Power stability of Laser IV for 12 h.
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