Zheng-Xian Tsai, Kuo-Chih Chang, Shu-Chun Chu, "Pattern control of a Q-switched pulsed laser with a dual-cavity configuration digital laser," Chin. Opt. Lett. 23, 011404 (2025)
- Chinese Optics Letters
- Vol. 23, Issue 1, 011404 (2025)
Fig. 1. Schematic diagram of the experimental setup for the dual-cavity configuration for mode-selective pulsed laser generation with a digital laser.
Fig. 2. Results for a pulsed HG01 mode generation. (a) Phase diagram projected on the SLM; the red box shows the 0-π checkerboard phase; (b) and (c) laser field intensities of the secondary and primary cavities, respectively.
Fig. 3. Results for the pulsed laser generation with average input power of 2.4 W. (a) Measured laser intensity distribution from the secondary cavity–HG10, HG01, and HG00 CW laser; (b) pulsed laser patterns in the primary cavity accordingly.
Fig. 4. Characteristics of laser output-input power of the two cavities (i.e., primary and secondary).
Fig. 5. Characteristics of the laser pulse from the primary cavity versus input peak power. (a) Average pulse width; (b) time profile at input peak power of 80 W; (c) single-pulse energy; (d) ratio of the primary cavity peak power to the secondary cavity CW power.
Fig. 6. Comparison of power per area for the primary and secondary cavities and safe values for SLM.
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