Optical devices, components and methods for mounting optical fibers and
for side-coupling light to/from optical fibers using a modified silicon
V-groove, or silicon V-groove array, wherein V-grooves, which are
designed for precisely aligning/spacing optical fibers, are "recessed"
below the surface of the silicon. Optical fibers can be recessed below
the surface of the silicon substrate such that a precisely controlled
portion of the cladding layer extending above the silicon surface can be
removed (lapped). With the cladding layer removed, the separation between
the fiber core(s) and optoelectronic device(s) can be reduced resulting
in improved optical coupling when the optical fiber silicon array is
connected to, e.g., a VCSEL array.