Yokogawa AQ6373B 350-1200nm Optical Spectrum Analyzer
Yokogawa Optical Spectrum Analyzers. Accuracy: ±0.05 nm, Resolution: 0.01 nm (400–470 nm), Sensitivity: -80 dBm.
- Model
- Yokogawa AQ6373B
- Calibration
- Available on request
- Price
- $36,800
- Status
- In stock
- RFQ ref
- AQ6373B
This unit
The Yokogawa AQ6373B is a visible wavelength optical spectrum analyzer engineered for high-speed, accurate spectral analysis across the 350 to 1200 nm range. Part of the AQ6370 Series, it delivers ±0.05 nm wavelength accuracy with resolution down to 0.01 nm (400–470 nm) and 0.02–10 nm across the full spectrum. The instrument achieves -80 dBm sensitivity and ≥60 dB dynamic range through an advanced monochromator, enabling precise measurement of closely spaced spectral lines and weak optical signals.
It captures 50,001 data points per sweep while maintaining high wavelength resolution, with measurement speed enhanced by optimized electrical circuits and noise reduction techniques. Designed for development and manufacturing across laser diodes, fiber lasers, passive devices, and LEDs, the AQ6373B serves biomedical, material processing, consumer product, and telecommunications markets. Built-in optical alignment and wavelength calibration with external reference sources ensure sustained performance.
The instrument supports single-mode, multimode, and large-core fiber inputs with small insertion loss variation for enhanced measurement repeatability. A color analysis function addresses VIS applications specifically. Measurement modes include pulse peak spectrum analysis for pulsed light signals - valuable for transmission loop testing and low-power laser chip characterization - and high dynamic mode to suppress stray light influence from strong signals.
Seven sensitivity settings and fast warm-up (within minutes) enable rapid, accurate characterization. Intuitive front-panel control with mouse and keyboard support streamlines operation. Maximum safe input power is +20 dBm.
Technical Specifications
- Wavelength range: 350–1200 nm
- Wavelength accuracy: ±0.05 nm
- Wavelength resolution: 0.01 nm (400–470 nm); 0.02–10 nm (full range)
- Level sensitivity: -80 dBm
- Dynamic range: ≥60 dB
- Maximum safe input power: +20 dBm
- Data sampling: 50,001 points per sweep
- Optical fiber support: Single-mode, multimode, large-core
Key Features
- Advanced monochromator for high resolution and close-in dynamic range
- Seven sensitivity settings for weak signal measurement
- High dynamic mode for stray-light reduction on strong inputs
- Pulse peak spectrum measurement for pulsed laser analysis
- Built-in optical alignment and external wavelength calibration
- Color analysis function (VIS)
- Fast warm-up and measurement speed
- Low insertion loss variation at input connector
Typical Applications
- Laser diode and fiber laser development
- Optical filter and FBG characterization
- Biomedical and material processing applications
- Consumer product optics validation
- Telecommunications component testing
Compatibility & Integration
- Single-mode, multimode, and large-core fiber inputs
- External wavelength reference support
- Mouse and keyboard control
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | '-80 dBm to +20 dBm | Wavelength Range: 350 nm to 1200 nm |
Frequently Asked Questions
- What does the Yokogawa AQ6373B measure, and what is its wavelength range?
- The AQ6373B is a high-precision optical spectrum analyzer that measures optical power across wavelengths from 350 nm to 1200 nm, covering UV through near-infrared regions. It delivers ±0.05 nm wavelength accuracy with 0.01 nm resolution in the 400–470 nm band, and sensitivity down to −80 dBm, making it suitable for fiber optic characterization, component testing, and signal monitoring in optical communication systems. The instrument's dynamic range spans −80 dBm to +20 dBm, enabling analysis of weak signals and strong sources without attenuation switching.
- What is the condition of this used AQ6373B, and what was verified before listing?
- This unit is offered in used condition and has been functionally verified for core optical measurement performance prior to listing. All specifications—including wavelength accuracy, resolution, and sensitivity—remain within manufacturer tolerances. We recommend calibration to confirm traceability to NIST standards, which is available separately starting at $450.
- What does calibration cover for the AQ6373B, and what is the cost?
- Calibration services for the AQ6373B verify wavelength accuracy, power measurement linearity, and sensitivity across the instrument's full 350–1200 nm range, ensuring results traceable to national standards. Our calibration service starts at $450 and includes a detailed calibration report. Turnaround time and exact scope should be confirmed directly with our sales team.
- What interfaces and software connectivity does the AQ6373B support?
- The Yokogawa AQ6373B features GPIB (IEEE-488) connectivity for remote instrument control and data acquisition in automated test environments. The instrument is compatible with Yokogawa's proprietary measurement software and standard SCPI command sets, allowing integration into lab automation and data logging systems. Specific driver availability and USB or LAN options should be verified with our technical team for your application requirements.
Yokogawa AQ6373B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Yokogawa AQ6373B. 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 Yokogawa AQ6373B 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.
Yokogawa AQ6373B price
This Yokogawa AQ6373B is listed at $36,800. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Yokogawa AQ6373B calibration cost
NIST-traceable calibration for the Yokogawa AQ6373B 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 →
