An optical time-division multiplexer in which the phase difference between two optical signals to be used for the synthesis of an output optical signal thereof is maintained at a constant value, regardless of variations in accuracy of the manufacture thereof. Thereby, stable output optical signals are...http://www.google.fr/patents/US5917628?utm_source=gb-gplus-shareBrevet US5917628 - Optical time-division multiplexer capable of supplying stable output signal
Optical time-division multiplexer capable of supplying stable output signal
