High Conversion Efficiency, High Beam Quality, High Peak Power 520 ps, 100 Hz, 2 mJ Tunable Blue All-Solid-State Laser
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This study demonstrates a wavelength-tunable blue solid-state laser system based on a hundred-picosecond microchip laser. By utilizing a 355 nm laser to pump a beta-barium borate optical parametric oscillator (BBO-OPO), the system achieves laser output tunable across the 420–710 nm range. The output laser pulses exhibit a pulse width of 520 ps, and at a repetition rate of 100 Hz, the single-pulse energy reaches up to 2.13 mJ. The beam quality is characterized by M x 2 =2.433 and M y 2 =2.384, with an optical-to-optical conversion efficiency of 34.99% from the ultraviolet pump light to the blue output.
