FSL high-stability fiber-coupled semiconductor lasers integrate high-precision laser drive and temperature control modules, enabling precise control and real-time monitoring of laser diodes. The product features continuously adjustable output power, excellent power stability (RMS better than ±0.2% within the operating temperature range, and 24-hour RMS better than ±1% under room temperature ±3°C conditions), supports internal and external modulation functions, has a warm-up time of 5 minutes, is easy to operate, and can operate stably for extended periods. The central wavelengths of this series of lasers include 405nm, 633nm, 640nm, 976nm, and 1064nm. All models feature TEM00 transverse mode, utilize single-mode fiber output, with FC/APC fiber connectors, and employ air cooling for heat dissipation. This laser is suitable for applications such as photoelectric detection, fluorescence microscopy, reflection imaging, infrared spectroscopy, DNA sequencing, flow cytometry, digital imaging, analytical chemistry, particle measurement, laser confocal microscopy, and Raman spectroscopy. Each LBTEK laser comes with detailed usage instructions and test reports. Safety reminder: Even at low power, lasers can cause eye damage. Please follow safety regulations and wear protective equipment when using them.