KOTURA 4 CHANNEL VOA
The Kotura 4 Channel VOA (Variable Optical Attenuator) is a device used to attenuate the power of optical signals in fiber optic systems. It features four independent channels, each capable of precisely controlling the level of attenuation. This component is ideal for balancing signal strength in multi-channel systems, testing and measurement applications, and dynamic power control in optical networks.
- Model
- Kotura 4 CHANNEL VOA
- Calibration
- Available on request
- Price
- $680
- Status
- In stock
- RFQ ref
- 4 CHANNEL VOA
This unit
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.
Specifications
| Parameter | Value |
|---|---|
| Wavelength Range | 1270–1580 nm (singlemode) |
Kotura 4 CHANNEL VOA — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Kotura 4 CHANNEL VOA. Calibration covers attenuation accuracy at 5 or more set values across the full range (0 to rated maximum dB), attenuation linearity, wavelength-dependent attenuation at 1310 nm, 1490 nm, and 1550 nm, insertion loss at minimum attenuation (0 dB position), and polarization-dependent loss (PDL) where applicable. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Kotura 4 CHANNEL VOA faults: motor and gear mechanism wear (attenuation steps or loss of smooth control), optical port contamination, EEPROM calibration data corruption. Most common faults are motor or gear mechanism wear on variable attenuators causing attenuation steps or loss of smooth control, optical port contamination reducing dynamic range, and EEPROM calibration data corruption on digitally controlled models.
Kotura 4 CHANNEL VOA price
This Kotura 4 CHANNEL VOA is listed at $680. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Kotura 4 CHANNEL VOA calibration cost
NIST-traceable calibration for the Kotura 4 CHANNEL VOA is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers attenuation accuracy at 5 or more set values across the full range (0 to rated maximum dB), attenuation linearity, wavelength-dependent attenuation at 1310 nm, 1490 nm, and 1550 nm, insertion loss at minimum attenuation (0 dB position), and polarization-dependent loss (PDL) where applicable. Turnaround is 1 to 3 business days after receipt. See full calibration details →
