The SMC1310-1-2 from Idealphotonics Inc is a Fiber Optic Coupler with Wavelength 1310 nm, Directivity 50 dB, 60 dB on request, Insertion Loss 3.4 dB, Return Loss 50 dB, Polarization Dependent Loss 0.3 dB. More details for SMC1310-1-2 can be seen below.
