Recently, there has been much interest in light sources for a frequency division multiplication (FDM) transmission system. The multielectrode DFB laser 1 Is one of the most promising devices for this use, because it is superior In terms of wavelength tunability, 1 narrow spectral linewidth,2 and FM response flatness.3 Furthermore, increasing the number of electrodes potentially improves the single-mode operationability. On the basis of the above aspects, we tried doubling the top electrode of each DFB laser arrayed on a chip. We report experiments of a four-channel multielectrode DFB laser array in the 1.5-µm wavelength region. This is the first demonstration of a wavelength-tunable single-frequency-laser array.

© 1988 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription