The GLOBALfiber 1-Channel CWDM Optical Add/Drop Multiplexer (OADM) provides a high-performance, passive solution for adding or dropping a single CWDM wavelength while allowing all other channels to pass transparently. Designed for metro, access, enterprise, and backbone CWDM systems, this compact, thin-film-filter (TFF)-based module delivers low insertion loss, excellent channel isolation, and outstanding stability across a wide temperature range.
Engineered for long-term reliability in demanding optical environments, the module is built with SMF-28e fiber, sealed steel housing, and optimized optical pathways to ensure consistent performance in field deployments, splice closures, street cabinets, and controlled indoor applications.
Product Overview
• Form Factor: 3-Port CWDM OADM
• Fiber Type: Singlemode (SMF-28e)
• Wavelength Range: 1270–1610 nm (20 nm ITU Grid)
• Technology: Thin Film Filter (TFF)
Key Features
• Low insertion loss: =0.6 dB at passband for minimal signal degradation
• High channel isolation: =30 dB (adjacent), =50 dB (non-adjacent)
• Low PDL: =0.1 dB for stable performance under polarization changes
• High directivity: =50 dB – reduces unwanted reflections
• High return loss: =45 dB – ensures clean optical paths
• Passive, no power required
• Compact steel housing ideal for splice trays, closures, and field installation
• Wide operating temperature: –40°C to +85°C for harsh environments
Technical Specifications
• Channel Spacing: 20 nm (ITU CWDM Grid)
• Wavelength Range: 1270–1610 nm
• Passband Width: = ±7.5 nm
• Passband Ripple: = 0.3 dB
• Reflection Band Ripple: = 0.2 dB
• Technology: Thin Film Filter (TFF)
• Insertion Loss @ Passband: = 0.60 dB
• Insertion Loss @ Reflection: = 0.40 dB
• Channel Isolation (Adjacent): = 30 dB
• Channel Isolation (Non-Adjacent): = 50 dB
• Reflection Isolation: = 15 dB
• Polarization Dependent Loss (PDL): = 0.1 dB
• Polarization Mode Dispersion (PMD): = 0.2 ps
• Thermal Stability: = 0.005 nm/°C
• Directivity: = 50 dB
• Return Loss: = 45 dB
• Power Handling: = 500 mW
• Operating Temperature: –40°C to +85°C
• Storage Temperature: –40°C to +85°C
• Fiber Type: SMF-28e
• Package Dimensions: 5.5 mm × 34 mm (steel housing)
Applications
• CWDM metro and access networks
• Enterprise optical backbone
• Fiber capacity expansion
• Add/drop multiplexing for single wavelengths
• Long-distance and high-density WDM transport
• Outdoor enclosures, cabinets, splice closures