Light signal transmission device with optical fiber

摘要: PURPOSE:To furnish a light signal transmission device with an optical fiber which makes it possible to make the capacity of data large and small can execute highly-reliable in parallel transmission. CONSTITUTION:This is formed at least one semiconductor light- emitting element 2 for on base 1, photodetector 3 reception same as light-emitting transmission, has layer structure this isolated therefrom electrically spatially by isolating groove, fibers 5 6 executing be transmitted from reception.