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Service & Repair of Yokogawa AQ6370 Optical Spectrum Analyzer OSA

  • Fastest NIST Calibration
  • On-Site Calibration
  • Original OEM Parts
  • Calibration Data On Demand

Yokogawa AQ6370 Optical Spectrum Analyzer – Expert Repair, Precision Alignment & NIST-Traceable Calibration

We offer professional repair, calibration, and maintenance services for the Yokogawa AQ6370 Optical Spectrum Analyzer (OSA)—a high-performance, full-featured instrument used for precise optical signal analysis across DWDM, passive components, laser characterization, and fiber optic network development. Renowned for its fast sweep speeds, high dynamic range, and exceptional wavelength accuracy, the AQ6370 is a critical tool in advanced R&D, telecom labs, and production environments. If your unit is failing to boot, misreporting wavelengths, or experiencing optical signal issues, we can restore it to factory-grade performance with full diagnostics and NIST-traceable calibration.

Complete Service Workflow

Comprehensive Diagnostic Evaluation
Each AQ6370 unit undergoes detailed testing using calibrated tunable lasers, power meters, and optical sources, focusing on:

  • Wavelength accuracy and repeatability

  • Dynamic range and trace stability

  • Sweep speed, RBW (Resolution Bandwidth), and span functionality

  • Input port alignment and optical signal strength

  • Display, touch panel, and interface response

  • Remote control functionality via GPIB, Ethernet, or USB

  • Firmware boot-up integrity and menu operations

Common Issues We Repair

  • No optical signal detection or degraded sensitivity

  • Incorrect wavelength readings or drift over time

  • Internal noise floor elevation or trace instability

  • Slow or failed sweep operation

  • Boot-up errors, black screen, or frozen UI

  • Burnt, cracked, or loose FC/APC or SC input connectors

  • GPIB, USB, or LAN port communication failures

  • Display flickering, touchscreen non-responsiveness

  • Fan or power supply failure causing shutdowns or thermal errors

Component-Level Electronics Repair
Our skilled technicians perform deep circuit board-level repair, including:

  • Replacing failed capacitors, ICs, DC/DC converters, and logic components

  • Power supply reconditioning for consistent operation

  • Restoration of detector boards and analog front-end circuitry

  • Troubleshooting of digital control boards, fan controllers, and backlight circuits

Optical System Cleaning & Realignment
Accurate spectrum analysis relies on a clean, precisely aligned internal optical path. We:

  • Clean input ports, optical lenses, diffraction gratings, and mirrors

  • Re-align the monochromator and internal optics to factory standards

  • Test fiber coupling efficiency and input port signal alignment

Firmware & Self-Test Validation
We verify firmware consistency, update (if applicable), and run internal self-diagnostics to ensure:

  • Accurate trace generation

  • Proper operation across all user-selectable measurement ranges

  • Calibration data integrity and real-time signal processing

NIST-Traceable Final Calibration
After repair, each AQ6370 is calibrated with NIST-traceable reference lasers and optical sources, including:

  • Wavelength calibration across the full measurement range

  • Power level linearity and signal accuracy testing

  • Sweep time and bandwidth verification
    A detailed calibration certificate is provided with before-and-after results.

Why Choose Us?

  • Years of experience repairing Yokogawa AQ6370 series and other AQ-series OSAs (e.g., AQ6317B, AQ6373, AQ6375)

  • Fast turnaround – typically 3 to 5 business days

  • Specialized tools for cleaning, alignment, and high-resolution calibration

  • Warranty on all repair services and a 15-day Right of Return

  • Global shipping with protective packaging and export documentation

  • Flexible payments: credit card, PayPal, ACH, or wire transfer

Ideal For:

  • Fiber optic labs using AQ6370 for DWDM and broadband spectrum analysis

  • R&D environments requiring certified calibration and traceable test accuracy

  • Teams experiencing optical instability or hardware failures in their unit

  • Buyers of used AQ6370 units needing restoration and full validation

Restore Accuracy & Reliability to Your Yokogawa AQ6370 OSA

If your Yokogawa AQ6370 Optical Spectrum Analyzer is failing to operate reliably, delivering inaccurate data, or showing display/interface issues, we can help. Our expert team provides comprehensive service including optical realignment, deep electronics repair, and NIST-traceable calibration to return your unit to high-performance condition.

Contact us today to request a service quote or begin the repair process for your AQ6370.

Get a Quick Quote

Email: Sales@aumictech.com

Call:  +1 ‪(484) 841-9341‬

Price Starts from:

$2,480.00

Professional service and repair for Yokogawa AQ6370 Optical Spectrum Analyzers (OSA). Comprehensive diagnostics, component-level repairs, calibration, and performance verification to ensure your OSA meets original specifications and delivers accurate spectral measurements.

Calibration Services

Accurate measurements are critical in every lab and manufacturing environment. That’s why we offer NIST-traceable calibration. Using precision standards and certified reference equipment, our team performs a full verification of wavelength accuracy, power levels, and response time. After calibration, your instrument not only meets but often exceeds factory specifications. Every service includes a calibration certificate to support ISO and quality compliance audits.

Industry Applications

Our repair and calibration services are trusted by telecommunications providers, research labs, universities, and manufacturing plants worldwide. By maintaining tight tolerances and providing quick turnaround, Aumictech helps minimize downtime and maximize productivity. Many of our clients rely on us for scheduled preventive maintenance, ensuring instruments remain accurate during critical testing or production runs.

Cost Efficiency & On-Site Options

Unlike OEM services that often come with long lead times and high costs, Aumictech provides affordable repairs with flexible turnaround options. For large facilities or urgent needs, we also offer on-site calibration—bringing our certified equipment directly to your lab or production line. This reduces shipping delays, minimizes handling risks, and keeps your operations running smoothly without interruption.

Why Choose Aumictech

Choosing Aumictech means partnering with a dedicated repair and calibration lab focused on optical and RF test equipment. With decades of combined expertise, an extensive inventory of replacement parts, and specialized tooling for high-end instruments, we deliver reliable service at a fraction of the replacement cost. Our commitment to quality, precision, and fast turnaround makes us the trusted partner for organizations looking to extend the life and accuracy of their critical equipment.