Optical Modules in Optical Fiber Communications
Optical modules play a vital role in optical fiber communications by transmitting high-frequency signals like 1G, 10G, and 100G.
Heat Generation in Optical Modules
Despite their small size, optical modules in optical fiber communication applications generate significant amounts of heat.
Importance of PCB Material for Optical Modules
Choosing the right PCB material is crucial for optical modules to meet high-speed requirements and possess excellent electrical and mechanical properties. RO4350B, a glass fiber reinforced hydrocarbon/ceramic laminate sheet, with a dielectric constant of 3.48 and a loss factor of 0.0031, ensures efficient transmission of high-frequency signals while minimizing signal attenuation.
Advantages of RO4350B
- Lowest dielectric constant with temperature fluctuation among similar materials, at only 50ppmC.
- Similar coefficient of thermal expansion (CTE) to copper, providing exceptional dimensional stability for multilayer circuit board design.
- Low Z-axis thermal expansion coefficient (only 32ppm/C) ensures high-quality through holes in the board, even in severe thermal shock applications.
For more information on PCB fabrication for optical modules, visit Wellcircuits.
