single-mode 1310/1550nm Wavelength Division Multiplexers
can couple the optical signals (1310nm and 1550nm) in a
specific coupling area, in other words, it have two
kinds of functions: add a optical signal onto another
one, then realize that two optical signals transport in
one fiber (Combination); drop one optical signal from
the mixed optical signals transporting fiber (Division).
It is the primary unit for high-performance WDMs.
All-optical WDM units were produced by FBT technique,
and adequate experiments and customer's feedbacks have
showed that they have very good performance in