We report on a Y-junction channel waveguide laser, operating at room t
emperature, in Nd-diffused Ti:LiNbO3. Pumping was performed with a cw
Ti:Al2O3 laser operating at 816 nm. With feedback provided only by the
polished end faces of the device, a cw lasing threshold of similar to
39-mW launched pump power was obtained, with a slope efficiency of si
milar to 35%. Using 95% reflectivity mirrors at the waveguide ends, we
reduced the lasing threshold to similar to 4 mW, with a slope efficie
ncy of similar to 2.6%. Tuning of the lasing signal over a range of 2.
3 Mm around a center wavelength of 1092.7 nm was demonstrated, with a
monolithically integrated phase modulator.