Use of a multiwavelength surface-emitting laser array in a four-channel wavelength-division-multiplexed system experiment

The first wavelength-division-multiplexed system experiment using a monolithically integrated two-dimensional surface-emitting laser array is reported. Four lasers at a wavelength separation of 1.5 nm in the 980-nm region were operated simultaneously and a bit-error rate of 10/sup -9/ (155 Mb/s) was attained with negligible optical and electrical crosstalk between the lasers.>