Highly Reliable Operation of Red Laser Diodes for POF Data Links

摘要

Requirements for laser diodes used in plastic optical fiber (POF) data links include such features as stable operation for more than 100,000 h at 60 ℃ and 5 mW and transmission speed greater than 1 Gbps. By optimizing crystal growth conditions and device structures, we have successfully fabricated highly reliable laser diodes with 1.25-Gbps transmission speed. The median lifetime for 5-mW operation at 60 ℃ was estimated to be more than 800,000 h. These results indicate that 660-nm-band laser diodes are very promising light sources for POF data links.