| Lasers and optical-amplifiers are commonly important in optical systems.
Monolithic integration of such devices with other waveguide components
may allow us to develop novel integrated optic devices. Presently, our
interest is focused on implementation of such components on rare-earth
doped LiNbO3 substrates. The rare-earth element exhibits laser-transition,
and the laser cavity is constructed of a channel waveguide with polished
ends (or dielectric mirrors on the waveguide facets). We have established
rare-earth doping technique, i.e., thermal-in-diffusion of rare-earth element,
and demonstrated a highly efficient Nd-doped LiNbO3 waveguide lasers and
Er-doped LiNbO3 waveguide amplifiers. |
