Hi, I am looking for some DWDM filters working at 1350nm with 90dB rejection. If you have any supplier for this wavelength let me kow
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Hi Yoann Jestin
I am jingchen From China, i have rich experience inDWDM，FWDM，CWDM,LWDM fiber components, (also coupler,PLC,AWG,VOA,FA,circulator,reflector.,etc),could you please share more details about your needs,such as pass band ,stop band, channel spacing(100GHZ，200GHZ or ??) .I am good at the fiber components market and maybe i can help a lot.
Looking forward you reply.
Thiss is the primary structure that we design. generally it is hard to use one filter to reach the isolation of 90dB， by coating we can reach about 55dB at most, but if we have two filter ,the isolation of 90dB will be easy to reach.
we have made a fwdm fiber components for a big company , his demand is that the isolation of 1550 reach the isolation of 100dB.
above is just our primary design, i will provide a final solution to you after we know your detailed needs .