The KOTURA 4 CHANNEL VOA is a variable optical attenuator delivering independent attenuation control across four simultaneous channels. Each channel provides precise, variable adjustment of optical signal power from 0 to 15 dB, enabling balanced multi-channel operation in fiber optic systems. The device combines low insertion loss, high return loss, and exceptional stability across all channels—making it suitable for dynamic power management, signal equalization, and rigorous optical testing environments.
Technical Specifications
• Channels: 4 independent
• Attenuation Range: 0–15 dB per channel
• Operating Wavelength: 1550 nm ± 20 nm; PM versions support 1310 nm, 1550 nm, 1620 nm; singlemode range 1270–1580 nm
• Insertion Loss: <3 dB typical (singlemode and multimode <3.5 dB)
• Return Loss: ≥50 dB typical
• Polarization Dependent Loss (PDL): ≤0.05 dB typical (manual versions ≤0.15 dB)
• Polarization Mode Dispersion (PMD): ≤0.25 ps typical
• Attenuation Accuracy: 0.5 dB regulation; 0.1 dB or better repeatability available
• Power Consumption: <3 W
• Dimensions: 10 × 8 × 4 inches
– Key Features
• High multi-channel attenuation stability
• Variable control for real-time optical power adjustment
• Suitable for both singlemode and multimode fiber systems
• Ultra VOA series available in pluggable SFP form factor with 20-pin connector
• RS-232 serial interface option for remote control
– Typical Applications
• Signal strength balancing in multi-channel communication systems
• Optical margin verification and receiver operating range testing
• Network simulation and laboratory measurement protocols
• WDM agile networks requiring dynamic power control
• Fast transient suppression in silicon photonics-based implementations
– Compatibility & Integration
Designed for standard fiber optic systems and network equipment. SFP-VOA variants integrate directly into standard SFP module slots on optical transceivers and network interface cards.
