Heat dissipation performance of aluminum cavity
Semiconductor lasers generate a large amount of heat during operation, which needs to be quickly dissipated through the cavity. Aluminum cavities have high thermal conductivity, low thermal expansion coefficient, and good thermal stability, which can effectively dissipate heat and improve the efficiency and lifespan of lasers.
Electrical properties of aluminum cavity
The operation of semiconductor lasers cannot be separated from the driving of current, so the electrical performance requirements of the cavity are also very high. The conductivity and impedance of the aluminum cavity are both very low, which can stabilize under rapidly changing currents and improve the output power and modulation speed of the laser.
The difficulty and cost of processing aluminum cavities
In semiconductor lasers, the cavity needs to withstand extreme conditions such as high temperature and high pressure, which require very high material performance and processing accuracy. Aluminum cavity has good processing performance, making the processing of the cavity easier, and the cost is relatively low, which can also reduce the manufacturing cost of the entire laser.
Other advantages
In addition to the above points, aluminum cavities also have advantages such as high reflectivity and good corrosion resistance. High reflectivity helps to improve the light output of the laser, and good corrosion resistance can extend the service life of the laser.
In summary, aluminum cavities have become the preferred material in semiconductor lasers due to their excellent heat dissipation, electrical performance, low processing difficulty, and low cost.
Post time: Aug-06-2025