Demonstration of Improved Immunity to Residual Facet Reflection for Uncooled EMLs with Partially Corrugated Grating

Low-Frequency-Drop of Electroabsorption Modulated Lasers and the Improvement With Partially Corrugated Grating Based DFB Lasers

“…There were concerns that if the performance improvement by PCG-EML can be conserved for higher data rate and its dependency on the grating length. The choice of an optimal grating length depends on the linear gain coefficient, which is crucial for attaining high signal quality and SMY [13]- [15]. We proposed here the PCG-EMLs to accomplish a smaller LFD and be relatively invulnerable to the change of RFR for transmitting ultra-high-speed signals.…”