CONTINUOUS-WAVE ERBIUM-DIFFUSED LINBO3 WAVE-GUIDE LASER

The first integrated optical laser in LiNbO3, doped by an indiffusion of Er3+ prior to channel-guide fabrication by Ti diffusion is reported. Pumped by a colour centre laser (lambda-p = 1.477-mu-m), CW operation at lambda = 1.532-mu-m (DELTA-lambda approximately 0.3 nm) with a threshold of approximately 8 mW absorbed power was achieved.