Optischer Schalter.

摘要

An optical switch has an optical transmission path (10, 66, 104, 150, 152) for propagating signal beams therethrough (A2), and a plurality of optical nodes (12, 54, 72, 98, 106, 154, 159, 164) each for transmitting and receiving the signal beams (A2). A reference beam source (14) generates reference beams (A1) each having a particular wavelength. The optical nodes (12, 54, 72, 106, 154, 159, 164) each generates a plurality of signal beams (A2) each being tuned to respective one of wavelengths associated with the wavelengths of the reference beams (A1).