The SMC1550-2-1 from Idealphotonics Inc is a Fiber Optic Coupler with Wavelength 1550 nm, Directivity 50 dB, 60 dB on request, Insertion Loss 0.2, 0.25, 0.3, 0.4, 14.6, 17.5, 18.5, 21.5 dB, Return Loss 50 dB, Polarization Dependent Loss 0.05 - 0.1 dB. More details for SMC1550-2-1 can be seen below.
