Multichannel Fiber Optic Package Interface for Avionics

Applied Optical Systems (AOS) has a design concept for a family of “DENSE-HIGH TEMP FIBER INTERFACE” fiber feed-throughs, compatible with the Small Form Factor SFF Opto-Electronic packages. The feed-throughs are both un-connectorized and connectorized. These feed-through will provide a 250 micron pitch while attaining a > 10^-9 Hermitic seal and withstand temperatures greater than 225C. In addition they will withstand the rigorous shock and vibration encountered in the Avionics environment. This family includes 3 specific feed-throughs: 1.) A 12 Fiber Single-Mode (SM) or Multi-Mode (MM) feed through is offered with < 0.5 dB insertion & -55 dB back reflection. 2.) Connectorized 12-fiber SM feed through < 0.5 dB insertion loss and -55 dB back reflection. Dim, 10 mm dia. x 4 mm thick or linear array, 1.5 mm pitch, 16 mm x 6 mm x 4 mm package. The linear package may be attached at the front on combined with the electrical connections at the back of the SFF package for a pluggable module that includes the fiber connections. 3.) Connectorized 12-fiber MM fiber feed through insertion loss < 0.5 dB; a back reflection < -20 dB. package dim. 5 mm dia. x 3 mm.