Optical Communications Using Gallium Arsenide Injection Lasers

A synthesis is presented which illustrates the applicability of gallium arsenide injection lasers as the source in high data rate optical communication systems. The synthesized system is a data link between two synchronous relay satellites separated by 45,500 statute miles. Requirements of the system were a data rate of 25 megabits per second and an information error rate of less than 10~5 . The system is synthesized using the parameters of commercially available injection lasers and photodetectors. A greater information capacity is shown when optimistic parameter values are used