AlN Ceramic Substrates: The Key to Stable, High-Speed Optical Modules
With the continuous upgrading of data centers, AI computing power, and high-speed communication networks, optical modules are rapidly evolving towards higher bandwidth, higher integration, and smaller package sizes. From 100G, 400G to 800G and even 1.6T optical modules, the power density within a unit volume has been continuously rising. The heat generated by lasers and modulators has become a critical limiting factor affecting system performance. Inside the optical module, the laser diode (LD) chip, high-power modulators (such as EML), and related driver circuits are extremely sensitive to operating temperature. Once the heat dissipation capacity is insufficient, it may cause wavelength drift, output power attenuation, and increase the aging speed of the device, thereby affecting the long-term reliability of the optical module and the stability of network operation. Core solution: High-performance aluminum nitride ceramic heat dissipation substrate Aluminum nitride (AlN) ...