Homemade lasers with high-intensity output are a very complex and high-risk task that involves professional optical, electronic, and mechanical knowledge, and requires specific equipment and environments. It is not recommended for non-professionals to try it on their own. Because this may pose a serious threat to personal safety, it may also violate relevant laws and regulations. The core components of the laser, such as the gain medium, pump source, resonator, etc., need to be precisely designed and debugged. Problems in any link may lead to serious consequences, such as laser leakage, which may damage the eyes and skin. If you have relevant needs, it is recommended to seek the help and guidance of professional scientific research institutions, enterprises or professionals to carry out relevant work in an environment that meets safety regulations and professional conditions.