The heteroepitaxial ridge-overgrown distributed feedback laser at 1.5micron.
01 January 1985
A new distributed feedback laser: the Heteroepitaxial Ridge- Overgrown Distributed Feedback (HRO-DFB) laser is proposed and demonstrated. The fabrication is simple with automatic self-aligning of current injection confinement, post-active- layer-growth determination of grating-period, and non-critical grating overgrowth.