Introduction

Semiconductor-pumped solid-state lasers have the characteristics of compact structure and high conversion efficiency, and have become mainstream lasers in modern industrial applications. This experiment uses a semiconductor-pumped solid-state laser designed with all industrial devices and scientific research-grade crystals. It has the advantages as open system, simple adjustment, comprehensive knowledge, and the capability of measuring parameters quantitatively. This experiment is suitable for undergraduate experimental teaching of courses related to "Laser Principles" in optoelectronics-related majors or practical training teaching in higher vocational colleges.

Experiments

Semiconductor laser pump source threshold and P-I characteristic measurement experiment;

Semiconductor pumped solid-state laser construction experiment;

Experiment on stable cavity characteristics of semiconductor pumped solid-state laser;

Research experiments on the relationship between resonant cavity length and threshold;

Research experiments on the impact of output mirrors with different transmittances on solid-state lasers;

Passive Q-switching experiment on saturable absorption crystal;

Research experiment on the effect of pump source power on pulse width and repetition frequency;

Frequency doubling experiment of semiconductor pumped solid-state laser;

Optimal frequency multiplication efficiency adjustment and measurement experiments.

Experimental Knowledge

Semiconductor laser threshold characteristics, pump source efficiency and output power, laser working materials, optical resonant cavity and stability conditions, optical resonant cavity loss, passive Q-switching technology, frequency doubling technology.

Typical Testing

Passive Q-switched Pulse Test                     Power Conversion Efficiency

  808nm Pigtail LD Pump Source               Multidimensional Crystal Mount