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11 passive WDM products — CWDM and DWDM mux/demux from 4 to 48 channels, OADM add/drop modules for rings, plus LAN WDM, MWDM and FWDM filters. Thin-film filter optics in 1U rack, ABS and LGX packages, built to your channel plan, swept channel by channel and shipped with the measured data. Nothing powered, nothing to fail.
20 nm channel spacing on the ITU-T G.694.2 grid — uncooled lasers, no temperature control, lowest cost per channel.
100 GHz and 200 GHz spacing on the ITU-T G.694.1 C-band grid — the highest channel counts and the basis of amplified DCI.

8 to 48 channels on the 100 GHz ITU C-band grid
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4 to 16 channels on 200 GHz spacing, lower loss
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DWDM optics in an LGX cassette for existing panels
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1300 nm-region DWDM for short-reach high-density links
View details →Drop one or two wavelengths at an intermediate site and pass the rest through untouched — the building block of optical rings.
Specialist grids: LAN WDM for 100G LR4 breakout, MWDM for 5G fronthaul, FWDM for 1310/1550 combining.

4 or 8 channel LWDM for 100G LR4 breakout
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6 or 12 channel MWDM for 5G fronthaul rings
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Combine or split 1310 nm and 1550 nm on one fiber
View details →Wavelengths or ITU channels, port count, package and connector — custom builds ship in 7–10 days.