Laser interferometer light source: Used for precision optical measurement (such as detection of part flatness and parallelism). The PD+ function real-time corrects power fluctuations, ensures the stability of interference fringes, and improves measurement accuracy.

Optical communication power monitoring node: Serves as a signal light source in short-distance optical communication systems, and monitors output power through PD+ to ensure stable communication signal strength, compatible with optical fiber communication testing equipment.

Precision spectral analysis: Such as atomic absorption spectroscopy and molecular fluorescence spectroscopy analysis. The 60mW stable power can reduce spectral baseline drift and improve the repeatability of analysis results.