20-Channel Single Fiber DWDM MUX/DEMUX with 1310nm Port (1U Rack)
The 20-Channel Single Fiber DWDM MUX/DEMUX with 1310nm port is a fully passive dense wavelength division multiplexing solution designed for high-capacity bidirectional transmission over a single optical fiber. By supporting 20 DWDM channels (40 wavelengths) plus a wideband 1310nm service port, this device enables efficient fiber utilization in environments where fiber resources are limited. The system is deployed in pairs (Side A / Side B) and allows simultaneous transmission and reception on different DWDM wavelength ranges, making it ideal for point-to-point metro and access networks.
This DWDM MUX/DEMUX is widely used in data centers, telecom networks, broadcast & TV, cloud infrastructure, finance, and government networks, where scalability, reliability, and low insertion loss are critical.
Key Features
• Single-fiber bidirectional DWDM transmission
• 20 DWDM channels (40 wavelengths total)
• Integrated wideband 1310nm port for additional services
• Fully passive design (no power required)
• High channel isolation and low insertion loss
• 19” 1U rack-mount form factor
• Designed for use as Side A / Side B matched pairs
Wavelength Configuration
• DWDM channels: C21–C60
• Side A:
o RX: C21–C40 (1560.61–1545.32 nm)
o TX: C41–C60 (1544.53–1529.55 nm)
• Side B:
o RX: C41–C60 (1544.53–1529.55 nm)
o TX: C21–C40 (1560.61–1545.32 nm)
• 1310nm passband: 1260–1360 nm
Technical Specifications
• Channel count: 20 channels / 40 wavelengths
• Channel spacing: 100 GHz (0.8 nm)
• Channel passband: ±0.11 nm
• Technology: AAWG (Gaussian)
• Insertion loss (DWDM): = 3.5 dB
• Total link loss: = 7 dB
• Insertion loss @ 1310nm: = 1 dB
• Passband ripple: = 0.5 dB
• Center wavelength accuracy: ±0.05 nm
• Return loss: = 40 dB
• Directivity: = 40 dB
• Polarization mode dispersion (PMD): = 0.1 ps
• Polarization dependent loss (PDL): = 0.3 dB
• Channel isolation:
o Adjacent channels: = 25 dB
o Non-adjacent channels: = 30 dB
Environmental & Mechanical Specifications
• Operating temperature: –5°C to +65°C
• Storage temperature: –40°C to +85°C
• Dimensions (H × W × D): 44 × 440 × 230 mm
• Net weight: 3.5 kg
• Connectors: LC/UPC
• Mounting: 19” 1U rack-mount chassis