A photonic device incorporate an epitaxial structure having an active
region, and which includes a wet etch stop layer above, but close to, the
active region. An etched-facet ridge laser is fabricated on the epitaxial
structure by dry etching followed by wet etching. The dry etch is
designed to stop before reading the depth needed to form the ridge. The
wet etch completes the formation of the ridge and stops at the wet etch
stop layer.