JDSU VA4 Optical Attenuator FOR PARTS
The JDSU VA4 is a variable optical attenuator designed for precision control of light levels in optical systems. This unit is being sold "AS IS" for parts or repair, and may not be fully functional. It could be used for lab experimentation, component harvesting, or repair purposes by experienced technicians.
- Model
- JDSU VA4
- Calibration
- Available on request
- Price
- $50
- Status
- In stock
- RFQ ref
- VA4
This unit
The JDSU VA4 is a manual variable optical attenuator for precision control of optical signal levels across a wide dynamic range. Sold as-is for parts or repair, this instrument serves users performing component harvesting, lab experimentation, or restoration work. The VA4 delivers attenuation control via front-panel adjustment with 0.1 dB resolution and maintains attenuation settings independent of power cycling - a key advantage over programmable alternatives.
Technical Specifications
- Attenuation Range: Up to 65 dB
- Resolution: 0.1 dB
- Calibration Wavelengths: 830 nm / 1300 nm or 1300 nm / 1550 nm
- Return Loss: Greater than 60 dB
- Insertion Loss: Low (values not detailed for as-is unit)
- Optical Technology: JDS Uniphase ultra-linear attenuator prism and microlens technology
Key Features
- Manual attenuation control from front panel
- Large-scale LCD readout for attenuation level display
- 9V lithium battery power for portable, handheld operation
- Low Battery indicator alerts user when replacement required
- Attenuation level maintained through power cycles
- Rear panel-mounted connector bulkheads
- All major connector types supported; Universal Connector Adapter (UCA) available
- Compact, portable design
Typical Applications
- Optical power control in test and measurement
- Receiver sensitivity testing
- Field system validation
- Power meter linearity verification
- Lab-based optical experimentation
- Component harvesting and repair
Compatibility & Integration The VA4 accepts all major optical connector types. Universal Connector Adapter accessories enable integration with non-standard interfaces. Dual calibration wavelength pairs (830/1300 nm or 1300/1550 nm) support multiband optical networks and legacy systems.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 9V lithium battery | Wavelength Range: 830 nm / 1300 nm or 1300 nm / 1550 nm |
JDSU VA4 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the JDSU VA4. 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 JDSU VA4 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.
JDSU VA4 price
This JDSU VA4 is listed at $50. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
JDSU VA4 calibration cost
NIST-traceable calibration for the JDSU VA4 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 →
