MWDM Mux/Demux Module — 5G Fronthaul

It takes six CWDM wavelengths — 1269, 1289, 1309, 1329, 1349 and 1369 nm — and splits each into a pair 1.5 nm either side, turning six channels into twelve in the same window. The lasers stay uncooled and cheap, which is the whole appeal for fronthaul.

For cabinet-mounted fronthaul sites exposed to outdoor temperature swings, yes — specify the -40 to +85 °C build. Indoor equipment rooms are fine with the commercial range.

Yes — that is most of what we ship. Send the wavelength or ITU channel list, the port count, the package and the connector type on your RFQ and we build to it. Custom plans add only a few days to lead time.

Take the insertion loss shown for your channel count and double it, because you need a unit at each end of the link. Then add roughly 0.3 dB per mated connector pair and 0.1 dB per splice, and keep 3 dB of margin for ageing and future repairs before you compare against the transceiver's link budget.

Yes. Every unit is swept channel by channel and the measured insertion loss, isolation and return loss are supplied with the shipment. Sample reports can be provided in advance for tender documentation.