OPTICAL TRANSMITTER AND OPTICAL RECEIVER AND OPTICAL TRANSMISSION SYSTEM

摘要

PURPOSE: An optical transmitter, an optical receiver and an optical transmission system are provided to reduce the costs and weight of an optical fiber by minimizing the number of strips of the optical fiber. CONSTITUTION: An electric to optical converters(111-114,160) converts plural electric signals into plural optical signals having different wavelength. Transmission lens units(121-124) collect the optical signals emitted from the electric to optical converters and enables the collected optical signals to progress in parallel. A coupling lens units(131,132) collect the optical signals passing through the transmission units to an optical fiber. The plural electric signals include first and second electric signals.