Advantest TQ8325 Digital Optical Wavelength Meter / UPDATED CALIBRATION
The Advantest TQ8325 is a digital optical wavelength meter designed for precise measurement of light wavelengths. Featuring updated calibration, it ensures accurate and reliable readings. Ideal for various applications requiring wavelength analysis.
- Model
- Advantest TQ8325
- Calibration
- Available on request
- Price
- $2,805
- Status
- In stock
- RFQ ref
- TQ8325
This unit
The Advantest TQ8325 Digital Optical Wavelength Meter is a precision benchtop instrument for high-accuracy measurement of optical signal wavelengths across visible to near-infrared bands. Built around a He-Ne laser standard, it employs Michelson interferometry to characterize central emitted wavelengths from laser diodes, LEDs, and modulated optical sources. The meter delivers wavelength and frequency readout simultaneously, with a dedicated deviation measurement function to track wavelength drift relative to a stored reference.
Auto-resolution automatically optimizes measurement resolution based on the half-value width of the input signal, while AVG mode averages 10 consecutive measurements for noise reduction.
Technical Specifications
Measurement Range & Accuracy- Wavelength Range: 480 nm to 1000 nm (short band); 1000 nm to 1600 nm (long band)
- Measurement Accuracy: 5 ppm
- Wavelength Resolution: 0.001 nm
- Frequency Resolution: 100 MHz
- Sampling Rate: 5 times/second
- Measurement Time: 200 ms Optical Input
- Connector: FC type
- Input Fiber: 9/125 µm single-mode
- Maximum Input Level: −15 dBm to +3 dBm (480–1000 nm); −23 dBm to +3 dBm (1000–1600 nm) Signal Capabilities
- Intensity-modulated light measurement at modulation rates ≥3 MHz
- Wavelength and frequency display modes
- Deviation measurement against reference wavelength Interfaces & Output
- GPIB interface
- Analog output: 0 to +1 V (lowest 3 digits)
- 7-segment LED display Physical & Environmental
- Dimensions: 300 mm (W) × 132 mm (H) × 450 mm (D)
- Mass: ≤12 kg
- Operating Temperature: 0°C to +40°C
- Operating Humidity: ≤85% RH
Key Features
- He-Ne laser standard ensures long-term measurement stability
- Michelson interferometry method enables sub-nanometer resolution
- Auto-resolution adapts to input signal characteristics
- Moving-average mode suppresses measurement noise
- Dual wavelength and frequency display for system flexibility
- FC connector accommodates standard single-mode fiber
Typical Applications
- Optical transceiver and module characterization
- Laser diode wavelength verification and stability monitoring
- LED spectral analysis in communications systems
- Wavelength drift detection under thermal stress
- Modulated signal source characterization
Compatibility & Integration GPIB connectivity enables automated test sequences and remote instrument control. Analog output allows real-time wavelength trending on external data acquisition hardware.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 MHz resolution |
| 5 samples/second | Power Range (dBm) | −15 dBm to +3 dBm (480–1000 nm) |
| −23 dBm to +3 dBm (1000–1600 nm) | Voltage / Current Range | Analog output 0 to +1 V | Wavelength Range: 480 nm to 1600 nm (0.48 µm to 1.6 µm) |
Advantest TQ8325 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Advantest TQ8325. Calibration covers absolute wavelength accuracy at multiple reference points across the full measurement range, frequency accuracy, wavenumber accuracy, and multi-wavelength channel spacing measurement accuracy. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Advantest TQ8325 faults: interferometer alignment drift, reference etalon or HeNe laser end-of-life, InGaAs detector sensitivity loss, fiber input connector damage. Fizeau interferometer-based instruments (Agilent 86120B/86122A/C) most commonly develop interferometer alignment drift and InGaAs detector degradation over time. Burleigh WA-series scanning Fabry-Perot instruments most commonly fail due to reference HeNe laser end-of-life. Both types are fully repairable with post-repair wavelength accuracy verification.
Advantest TQ8325 price
This Advantest TQ8325 is listed at $2,805. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Advantest TQ8325 calibration cost
NIST-traceable calibration for the Advantest TQ8325 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 absolute wavelength accuracy at multiple reference points across the full measurement range, frequency accuracy, wavenumber accuracy, and multi-wavelength channel spacing measurement accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →
