1.5 µm Region BH Laser Array

Abstract
The 1.5 µm wavelength region InP/InGaAsP laser arrays with four buried heterostructure (BH) lasers were fabricated with a high processing yield rate. The average threshold current and emission wavelength were about 50 mA and 1.47 µm under cw operation. The laser arrays were mounted with the junction-side up and four lasers could be operated independently as well as simultaneously.