Exfo FVA-3100-DEI Variable Attenuator
Exfo Optical Attenuators. Resolution: 0.01 dB.
- Model
- Exfo FVA-3100-DEI
- Calibration
- Available on request
- Price
- $1,950
- Status
- In stock
- RFQ ref
- FVA-3100-DEI
This unit
The Exfo FVA-3100-DEI is a variable optical attenuator engineered for precise control of optical signal power across telecommunications testing and manufacturing environments. It delivers attenuation up to 100 dB with 0.01 dB resolution, supporting both singlemode and multimode fiber configurations. The instrument operates across 700 nm to 1350 nm with ultra-low insertion loss (typically 1.5 dB) and high spectral uniformity (± 0.1 dB), making it ideal for EDFA characterization, component and system loss simulation, instrument calibration, and power meter linearity measurement.
Technical Specifications
Attenuation range: 0–100 dB
Attenuation resolution: 0.01 dB
Wavelength range: 700 nm to 1350 nm
Insertion loss: Typically 1.5 dB
Spectral uniformity: ± 0.1 dB
Supported fiber types: Singlemode (9/125 µm), Multimode (50/125 µm, 62.5/125 µm, 100/140 µm)
Calibration wavelengths: 1310 nm and 1550 nm (singlemode); 850 nm and 1300 nm (multimode)
Display modes: Absolute, Reference, Offset
Programmable attenuation steps: Up to 100
Dwell time per step: Up to 1000 hours
Operating temperature: 0 °C to 40 °C
Storage temperature: –40 °C to 70 °C
Relative humidity: 0 % to 80 % non-condensing
Dimensions: 117 mm (H) × 222 mm (W) × 333 mm (D)
Weight: 2.6 kg
Key Features
High repeatability and accuracy across full attenuation range
Return loss limited by connector return loss
Front-panel manual control with user-defined step adjustment and direct value editing
GPIB (IEEE-488.1, IEEE-488.2) and RS-232 remote control
LabVIEW drivers and SCPI command support
Monitor output port for power-level verification at receiver (select models)
Multiple connector options: FC/UPC, FC/PC, DIN 47256, HMS-10/AG, ST, SC, E-2000, and APC (singlemode)
Typical Applications
EDFA characterization
Component and system loss simulation
Instrument calibration
Power meter linearity measurement
Spectral tuning
Automated bit-error-rate (BER) testing
Linearity measurements via programmable attenuation sequencing
Compatibility & Integration The FVA-3100-DEI operates as a standalone benchtop unit or integrates into 19-inch rack systems. Connector adapters such as the EXFO Universal Interface (EUI) may be required depending on fiber type and connector configuration.
Specifications
| Parameter | Value |
|---|---|
| Wavelength Range | 700 nm to 1350 nm |
Exfo FVA-3100-DEI — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Exfo FVA-3100-DEI. 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 Exfo FVA-3100-DEI 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.
Exfo FVA-3100-DEI price
This Exfo FVA-3100-DEI is listed at $1,950. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Exfo FVA-3100-DEI calibration cost
NIST-traceable calibration for the Exfo FVA-3100-DEI 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 →
