The 4 Channel DWDM Fiber Demux is a single-fiber DWDM receiving unit designed to separate multiple DWDM wavelengths from one optical fiber into individual output channels.
It is used at the receive side and works with a compatible DWDM Mux at the transmitting end for stable bi-directional communication.
The Demux supports C25–C28 and C53–C56 wavelengths, fully compliant with ITU-T G.694.1 (100 GHz grid), delivering low loss, high isolation, and reliable long-distance transmission.
Optical Specifications (DEMUX)
Device Type: DWDM Demux (Receive Unit)
Number of Channels: 4 Channels (8 DWDM Wavelengths)
Transmission Type: Single Fiber BIDI
Wavelength Range:
C25–C28 (1557.36 nm – 1554.94 nm)
C53–C56 (1535.04 nm – 1532.68 nm)
ITU Standard: ITU-T G.694.1
Channel Spacing: 100 GHz (0.8 nm)
Channel Passband: ± 0.11 nm
Center Wavelength Accuracy: ± 0.05 nm
Optical Performance
Insertion Loss: ≤ 2.4 dB
Return Loss: ≥ 45 dB
Directivity: ≥ 45 dB
Polarization Dependent Loss (PDL): ≤ 0.3 dB
Polarization Mode Dispersion (PMD): ≤ 0.1 ps
Channel Isolation:
Adjacent ≥ 30 dB
Non-Adjacent ≥ 45 dB
Interface & Physical Specifications (DEMUX)
Fiber Type: Single Mode OS2
Connector Type: LC-UPC (LC-APC optional)
Line Port: Single Fiber
Expansion Port (EXP): Supported (for cascading with other DWDM Mux/Demux modules)
Technology: TFF (Thin Film Filter)
Mechanical & Environmental
Operating Temperature: –20 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Mounting Type: 19-inch 1U Rack Mount
Dimensions (HxWxD): 44 × 440 × 230 mm