Fiber optic connector adapter with shutter having selective wavelength transparency

An optical fiber adapter for supporting a laser light source transmitting a laser light with a first signal wavelength, the optical fiber adapter comprising:

• a body construction including a connector port along a connector axis;
• a first signal transmitter for transmitting a presence sensing light signal, and a first signal receiver for receiving the presence sensing light signal, the presence sensing light signal comprising a second signal wavelength, a light path between the first signal transmitter and the first signal receiver being generally transverse to the connector axis within the connector port;
• and
• a movable shutter door intersecting the presence sensing light signal in a shutter closed position, the shutter door comprising a material adapted to pass the presence sensing light signal at least partially therethrough when in the shutter closed position, the shutter door comprising a material adapted to block at least a portion of the first signal wavelength therethrough when in the shutter closed position, the shutter door being positioned and constructed such that the laser light attenuates to not transmit potentially eye damaging laser light through the shutter door in the shutter closed position, the shutter movable to a shutter open position to not block the laser light source transmitting the laser light with the first signal wavelength, the shutter door preferably comprising a material adapted to at least partially pass light visible to the human eye therethrough when in the shutter closed position.