The invention provides a select trigger or detonation system featuring an optical source, an optical fiber, one or more optical couplers and one or more light trigger or detonation devices. The an optical source provides an optical signal containing information about triggering or detonating a respective device. The optical fiber has one or more fiber Bragg Gratings for providing one or more fiber Bragg Grating optical trigger or detonation signals, each having a respective optical trigger or detonation wavelength. The one or more optical couplers each respond to the one or more fiber Bragg Grating optical trigger or detonation signals depending on the respective optical trigger or detonation wavelength, for providing a respective coupled fiber Bragg Grating optical trigger or detonation signal. The one or more light trigger or detonation devices each respond to the respective coupled fiber Bragg Grating optical trigger or detonation signals, for triggering or detonating the respective device, which may detonating an explosive charge or triggering any other control device to be actuated. In one embodiment, the one or more optical couplers may include a circulation coupler or a directional coupler. The system may also be used as a monitoring system.