Optimizing the InP spacer layer thickness reduces device voltage and resistance while maximizing carrier injection efficiency for improved gain.
Gallium nitride green laser diodes replace complex DPSS frequency doubling processes, reducing device weight and eliminating dangerous residual infrared beams.
A multicore fiber amplifier combines pump light with optical signals to boost transmission capacity.
Series thyristors control light emission in self-scanning arrays, resolving reliability issues caused by rectifying characteristics.
Varying ridge width and mode filter passivation in a laser light source enhance monomode guidance while reducing operating voltage.
Variable-width separation trenches prevent cracks from reaching mesa stripes, increasing manufacturing yield.
A master laser injection-locks a slave ring laser on silicon-on-insulator to enable high-speed modulation.
A semiconductor module positions an element within a base body groove to increase contact area and improve heat dissipation.
A nitride semiconductor laser element incorporates an end portion electrode protection layer to secure the p-type electrode during substrate cleaving.
Segmenting the p-type cladding into distinct InAlGaN and Group III layers resolves the contradiction between low drive voltage and optical confinement.
An asymmetric electrode configuration shapes the electric field to align the recombination zone with the fundamental mode position.