High Average Power Green Laser Based on LED-Side-Pumped Q-Switched Nd:YAG Laser

An LED-Side-Pumped Intracavity Frequency-Doubled Nd,Ce:YAG Laser Producing a 2W Q-Switched Red Beam

“…The results of the power density in the crystal was low, and the overlap between TEM00 and LED pump modes was deviated. [10][11][12][13][14][15] Thus, to capture more emission from the LED to enhance the coupling efficiency and enable higher mode matching, it was necessary to modify the LED emission mechanism, optimize the pump structure and increase the area fill factor to achieve a higher-efficiency LED pump laser. In this work, we analyze the emission mechanism of LEDs and address the coupling efficiency of LED-pumped lasers using non-diffuse scattering LEDs to rationalize the five-way pumping structure of LEDs.…”