High gain semiconductor optical amplifier — Laser diode at visible wavelength 
Date: Dec 3, 2016
We reported on the first experimental demonstration of a two-section semipolar InGaN-based laser diode with monolithically integrated semiconductor optical amplifier (SOA-LD). The onset of amplification effect was measured at 4V SOA bias (VSOA). The SOA-LD shows a large gain of 5.32 dB at VSOA = 6 V.