Efficient diode-pumped and harmonically mode-locked operation of a ful
ly packaged Ti:Er:LiNbO3 waveguide laser at 1562- (TE) and 1575-nm (TM
) wavelength has been demonstrated. The mode-locked pulses have been c
haracterized in terms of time-bandwidth product, fine tuning, and stab
ility. Noise suppression of 42 dB at the relaxation oscillation freque
ncy has been achieved by feedback-controlled pumping. An external ampl
itude modulator has been used for encoding of the mode-locked pulse tr
ain with different bit sequences. Bit error rates of 10(-10) for a 1-0
-1-0-bit sequence has been observed for more than half an hour.