ADVANTEST Q8381A Optical Spectrum Analyzer 350-1750nm same AQ6315E CALIBRATED
Advantest Optical Spectrum Analyzers. Power Range (dBm): -85 dBm to +10 dBm, Wavelength Range: 350 nm to 1750 nm.
- Model
- Advantest Q8381A
- Calibration
- Available on request
- Price
- $16,979
- Status
- In stock
- RFQ ref
- Q8381A
This unit
The Advantest Q8381A is a benchtop optical spectrum analyzer delivering precise spectral characterization across the 350 nm to 1750 nm range. This instrument combines wide wavelength coverage spanning UV through NIR with dynamic range exceeding 40 dB, making it suitable for telecommunications, fiber optics, optical component testing, and research applications. The Q8381A provides wavelength accuracy of ±0.5 nm at 23 ± 5 °C and level accuracy of ±1.5 dB or less, supported by selectable resolution from 0.1 nm to 5.0 nm.
Automated functions including peak search, half-value width measurement, and pulse light detection streamline measurement workflows. High-speed sweep capability delivers sub-second acquisition across 200 nm spans. A built-in thermal printer records results in 10 seconds or less, while GP-IB interface enables remote operation and data transfer.
Technical Specifications
- Wavelength Range: 350 nm to 1750 nm
- Wavelength Accuracy: ±0.5 nm (at 23 ± 5 °C); ±1.0 nm (at 10 to 40 °C)
- Wavelength Repeatability: 0.1 nm or less (one-minute repetitive sweep)
- Wavelength Resolution: 0.1 nm, 0.2 nm, 0.5 nm, 1.0 nm, 2.0 nm, 5.0 nm
- Dynamic Range: 40 dB or more (±1 nm from peak); input sensitivity -85 dBm; typical range -85 dB to +10 dBm (1.1–1.6 µm)
- Level Accuracy: ±1.5 dB or less (0.633 µm, 1.31 µm, 1.55 µm)
- Level Linearity: ±0.5 dB/20 dB, ±1.0 dB/40 dB, ±0.5 dB/10 dB, ±1.0 dB/40 dB
- Polarization Dependency: ±0.1 dB or less
- Sweep Time: 0.8 seconds or less (200 nm span); 1.0 second or less (50 nm span)
Key Features
- Automatic optimum measurement condition setting and peak search
- Half-value width measurement function
- Pulse light measurement capability with low-level data retention
- Power monitoring and luminosity compensation display
- Built-in thermal printer (10 seconds or less per print)
- GP-IB interface for remote control and data output
Typical Applications
- Telecommunications system testing
- Fiber optics characterization
- Optical component and device validation
- Display LED measurements
- Research and development
Compatibility & Integration
- GP-IB remote interface standard
- Benchtop form factor
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | '-85 dBm to +10 dBm | Wavelength Range: 350 nm to 1750 nm |
Frequently Asked Questions
- What does the Advantest Q8381A measure and what is its wavelength range?
- The Advantest Q8381A is a high-resolution optical spectrum analyzer designed to measure optical power across a broad wavelength range from 350 nm to 1750 nm, covering UV, visible, and near-infrared spectral regions. With a power measurement range of −85 dBm to +10 dBm, the Q8381A delivers sensitivity and dynamic range suitable for telecom, fiber-optic component testing, and laboratory spectroscopy applications. This instrument excels at characterizing laser sources, optical filters, and wavelength-dependent optical devices.
- What is the condition of this used Advantest Q8381A, and what was verified before listing?
- This unit is offered in used condition and has been functionally tested to confirm operational status across its specified measurement range and wavelength window. Visual inspection and bench verification were completed to assess cosmetic and electrical condition prior to listing. For critical metrology applications, we offer professional calibration services starting at $450 to restore traceable measurement accuracy.
- Is calibration available for the Q8381A, and what does it cover?
- Yes, calibration for the Q8381A is available separately starting at $450 and typically includes wavelength accuracy verification and optical power measurement verification across the instrument's operating range. Professional calibration restores NIST traceability and confidence in spectral and power measurements critical for R&D and production environments. Contact our calibration team for current turnaround times and specific calibration scope options tailored to your application.
- What interfaces and connectivity options does the Q8381A support?
- The Advantest Q8381A features GPIB (IEEE-488) connectivity as its primary control interface, enabling remote operation and automated measurement sequences from laboratory control systems and software environments. This interface standard is widely supported across legacy and modern test systems, allowing straightforward integration into existing optical measurement benches. Verify driver and software compatibility with your host system when integrating this unit into an automated test platform.
Advantest Q8381A — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Advantest Q8381A. Calibration covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Advantest Q8381A faults: wavelength motor failure, internal light source dimming, detector sensitivity loss. Common repairs include wavelength motor servicing, internal broadband source replacement, and detector recalibration after extended use.
Advantest Q8381A price
This Advantest Q8381A is listed at $16,979. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Advantest Q8381A calibration cost
NIST-traceable calibration for the Advantest Q8381A 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 wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
