BiDi DWDM Single Fiber Optical Multiplexers
Single fiber DWDM for max channel density on one strand: C-Band 20ch/dir (100 GHz), O-Band 16ch/dir (200 GHz). Bidirectional — ideal for long-haul and metro where fiber is limited.
Single Fiber (BiDi) DWDM multiplexers deliver maximum channel density over a single strand using ITU-T G.694.1 wavelengths. C-Band supports up to 20 independent channels at 100 GHz spacing, while O-Band offers 16 channels at 200 GHz spacing. Both operate bidirectionally, pairing wavelengths for transmit and receive on the same fiber to maximize fiber utilization. These passive filters require no power, cooling, or configuration, and support any protocol with DWDM-tuned transceivers. The expandable C-Band architecture lets you start with 8 channels and scale to 20 as capacity requirements grow.

C-Band DWDM Mux/Demux
100 GHz single fiber DWDM Mux/Demux carrying 8 to 20 bidirectional C-band channels (C21–C60) over one fiber strand, all with a 1310 nm port. 16 and 20 channel AWG units come in a 19" 1U housing. 8 channel units cover a C-band range you choose and have an EXP port for scaling up to 20 channels. Supplied as Side A and Side B pairs.

20-channel single fiber 100 GHz DWDM mux/demux, Side A, ITU-T C-band Ch 21-60, 19" 1U rack mount, with or without 1310nm monitor port.
20 Channels Single Fiber DWDM Mux/Demux A-Side
SDMD-20A
€453.37
20-channel single fiber BiDi DWDM mux/demux, Side B, ITU-T C-band Ch.21-60 (40 wavelengths), 100GHz spacing, LC/UPC connectors, 19-inch 1U rack mount, optional 1310nm monitor port.
20 Channels Single Fiber DWDM Mux/Demux B-Side
SDMD-20B
€453.37
16-Channel Single Fiber Passive DWDM Mux/Demux, Side A, Ch.21-52 (100 GHz AWG), 19" 1U rack mount, LC/UPC, optional 1310nm monitor port.
16 Channels Single Fiber DWDM Mux/Demux A-Side
SDMD-16A
€453.37
16-channel single fiber DWDM Mux/Demux, Side B, ITU-T C-band Ch.21-52, 100 GHz AWG, 19-inch 1U rack mount, LC/UPC connectors.
16 Channels Single Fiber DWDM Mux/Demux B-Side
SDMD-16B
€453.37
8-channel single fiber DWDM mux/demux, Side A, with EXP expansion port, selectable Ch.21-36, Ch.37-52 or Ch.45-60 band, LGX or 19 inch 1U housing, optional 1310nm monitor port.
8 Channels Single Fiber DWDM Mux/Demux A-Side
SDMD-8A
€342.87
8-channel single fiber 100 GHz DWDM mux/demux, Side B, ITU-T C-band, selectable Ch.21-36 / Ch.37-52 / Ch.45-60, LGX cassette or 19" 1U housing, built-in expansion port, with or without 1310nm monitor port.
8 Channels Single Fiber DWDM Mux/Demux B-Side
SDMD-8B
€342.87OADM & Line Termination Units
Single fiber DWDM add/drop units that drop 1–2 channel pairs. Use Line Termination units (SDLT) at end-of-link sites and 2-side OADM units (SDAD) at intermediate ring nodes

Single Fiber DWDM OADM adding and dropping one customer-selected 100 GHz ITU-T channel pair (Ch.21-Ch.60), mini-LGX or LGX housing, optional 1310nm monitor port, LC/UPC connectors.
1 Channel Single Fiber Passive DWDM Two side OADM Unit
SDAD-1
€103.40
Single fiber, two-side DWDM OADM adding/dropping 2 channel pairs (4 wavelengths) per unit, selectable across 10 100 GHz channel groups spanning Ch 21-60, mini-LGX or LGX housing, LC/UPC connector.
2 Channels Single Fiber Passive DWDM Two side OADM Unit
SDAD-2
€165.28
Single fiber DWDM line termination unit configurable by housing (mini-LGX or LGX), 100 GHz DWDM channel pair (Ch.21-Ch.60), and optional 1310 nm monitor port.
1 Channel Single Fiber Passive DWDM Line Termination Unit
SDLT-1
€72.46
Configurable single fiber DWDM line termination unit terminating one selectable 100 GHz DWDM channel-pair group (Ch.21-Ch.60), in mini-LGX or LGX housing, with an optional 1310 nm monitor port.
2 Channels Single Fiber Passive DWDM Line Termination Unit
SDLT-2
€103.40O-Band Mux/Demux
Single fiber O-band DWDM multiplexers optimized for BiDi deployments with minimal insertion loss. 4 and 8 channel options for all deployment sizes.

Side A, 4 Channel, 8 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1295.56~1303.45nm, IL below 3.5dB per link (≈1.75 dB typical per unit), with Monitor port, with Expansion port, LC/UPC connector, LGX Type
Expandable 4-Channel Single Fiber Passive O-band Mux/Demux
SOMD-4A-L
€306.65
Side B, 4 Channel, 8 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1295.56~1303.45nm, IL below 3.5dB per link (≈1.75 dB typical per unit), with Monitor port, with Expansion port, LC/UPC connector, LGX Type
Expandable 4-Channel Single Fiber Passive O-band Mux/Demux
SOMD-4B-L
€306.65
Side A, 4 Channel, 8 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1304.58~1312.58nm, IL below 3.5dB per link (≈1.75 dB typical per unit), with Monitor port, with Expansion port, LC/UPC connector, LGX Type
Expandable 4-Channel Single Fiber Passive O-band Mux/Demux
SOMD-4A-H
€306.65
Side B, 4 Channel, 8 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1304.58~1312.58nm, IL below 3.5dB per link (≈1.75 dB typical per unit), with Monitor port, with Expansion port, LC/UPC connector, LGX Type
Expandable 4-Channel Single Fiber Passive O-band Mux/Demux
SOMD-4B-H
€306.65
Side A, 8 Channel, 16 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1295.56~1312.58nm, IL below 4.8dB per link (≈2.4 dB typical per unit), with Monitor port, LC/UPC connector, LGX Type
8-Channel Single Fiber Passive O-band Mux/Demux
SOMD-8A
€545.74
Side B, 8 Channel, 16 wavelength, Single Fiber Passive Modular 200 GHz O-band Mux/Demux, 1295.56~1312.58nm, IL below 4.8dB per link (≈2.4 dB typical per unit), with Monitor port, LC/UPC connector, LGX Type
8-Channel Single Fiber Passive O-band Mux/Demux
SOMD-8B
€545.74