Multiwavelength optical crossconnect for parallel-processing computers

the burying layers. Lasers with this structure have a capacitance of 7.5 p F at 500 MHz and a 3 dB bandwidth of 7 GHz at a relatively low bias level of 3.41,,, (31 mA). It should be stressed that such excellent high-speed performance has been achieved with no signs of deterioration in the DC properties. Therefore, these results suggest that this laser structure is very suitable for high-speed lightwave transmission systems.