Applications:
1. High-Power Fiber Laser Pumping
As the preferred pump source for EYDFA, the 976nm band precisely matches the absorption peak of erbium-ytterbium ions, offering high absorption efficiency and low thermal load. It can drive fiber lasers to output high-power lasers at 1030-1080nm, used in industrial processing scenarios such as laser cutting, welding, and cladding.
2. Optical Communication Signal Amplification
Suitable for EYDFA amplifiers in long-distance optical communication, providing gain for C/L band signal light, improving the signal transmission distance and bandwidth of backbone networks and data center interconnects (DCI), especially suitable for high-capacity, long-haul communication scenarios.
3. Fiber Optic Sensing Systems
Used for pumping light sources in distributed fiber optic sensing (such as temperature and strain monitoring), 976nm pumped EYDFA can enhance the output power and detection sensitivity of sensing signals, suitable for long-distance monitoring scenarios such as oil and gas pipelines and power cables.
4. Scientific Research and Medical Laser Equipment
In scientific research, it is used for pulse amplification in ultrashort pulse laser systems. In the medical field, it can be used as a pump component for laser lithotripsy and soft tissue cutting equipment, meeting the needs of precise operation with its high power output and narrow linewidth characteristics.
Why choose 976nm?
1. High-Efficiency Pumping: It is a specific wavelength that perfectly matches the absorption band of rare-earth ions (such as erbium and ytterbium) in the fiber, maximizing pump absorption efficiency.
2. Wavelength Stability: Precise wavelength locking is typically achieved using fiber Bragg gratings (FBG) or volume Bragg gratings (VBG) to ensure stable performance even with changes in temperature or current.
3. Compactness: Compared to older technologies, it enables smaller and more efficient laser systems, which is crucial for integrated devices.