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

• 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

• 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

• 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