Effects of polarization charge in GaN-based blue laser diodes (LD)

Abstract

LASTIP software was applied to simulate a classical GaN-based blue laser diodes (LD) emitting at about 410nm. Considering effects of polarization charge (PC) in this LD, theoretical simulation showed accordant results with that in experiments. On the other hand, without regard to PC, threshold voltage and current are lowered, while laser characteristic temperature is enhanced, which indicates that PC acts as a negative role for laser performance.