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Service & Repair of Yokogawa AQ6370D Optical Spectrum Analyzer OSA

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

Yokogawa AQ6370D Optical Spectrum Analyzer – Expert Repair, Optical Realignment & NIST-Traceable Calibration

We offer specialized repair, calibration, and maintenance services for the Yokogawa AQ6370D Optical Spectrum Analyzer (OSA)—one of the most advanced optical test instruments used for telecom, photonics R&D, DWDM component testing, and fiber optic network development. The AQ6370D is known for its high-speed measurement, wide dynamic range, and best-in-class wavelength accuracy across the 600 to 1700 nm range. If your unit is experiencing optical issues, boot failures, interface errors, or measurement instability, our expert team will restore it to full functionality with NIST-traceable calibration and OEM-grade service.

Our Service & Repair Process

Comprehensive Diagnostic Testing
Each AQ6370D unit undergoes an in-depth evaluation using certified tunable lasers, optical reference sources, and signal analyzers to assess:

  • Wavelength accuracy, drift, and trace repeatability

  • Signal detection sensitivity and dynamic range

  • Sweep time, resolution bandwidth (RBW), and span behavior

  • Input connector integrity and signal coupling

  • Display, touchscreen, and control panel responsiveness

  • Communication ports: USB, LAN, GPIB, and remote interface functionality

  • Internal fan, temperature sensors, and boot diagnostics

Common Issues We Repair

  • No signal or weak optical detection

  • Incorrect wavelength readings or instability

  • Sweep failure or frozen trace display

  • Internal noise floor increase or degraded dynamic range

  • Boot-up errors, firmware crashes, or UI freeze

  • Damaged or loose FC/APC, SC, or LC input connectors

  • Touchscreen/display dimming, flickering, or failure

  • Communication interface failure (USB, LAN, GPIB)

  • Fan, sensor, or power supply issues causing system shutdown

Component-Level Repair & Electronics Restoration
We perform deep circuit board-level repairs, including:

  • Replacement of capacitors, ICs, regulators, and control chips

  • Troubleshooting and repair of detector amplifiers and signal processors

  • Power supply diagnostics and reconditioning

  • Repair or replacement of GPIB/LAN/USB interface boards

Optical Path Cleaning & Realignment
Precision optical measurement requires a clean, aligned internal path. We:

  • Clean and re-align input ports, fiber holders, collimators, lenses, and mirrors

  • Re-calibrate internal monochromator and diffraction grating alignment

  • Optimize internal optics for minimal loss and stable trace output

Firmware Validation & Internal Function Testing
After repairs, we run full self-test routines and validate:

  • Auto-calibration and trace repeatability

  • Remote software compatibility and API response

  • System boot speed and menu control behavior

  • Measurement across full wavelength range (600–1700 nm)

NIST-Traceable Calibration & Certification
All units are calibrated using NIST-traceable lasers and optical sources, including:

  • Wavelength calibration and span verification

  • Dynamic range, RBW, and sweep validation

  • Power level linearity and stability checks
    We provide a detailed calibration certificate with pre- and post-service test results.

Why Choose Us?

  • In-depth experience with Yokogawa AQ-series OSAs, including AQ6370D, AQ6370C/B, and AQ6373

  • Skilled in repairing modern OSAs with touchscreen interfaces and high-speed electronics

  • Fast turnaround – most units serviced within 3–5 business days

  • Service warranty included and a 15-day Right of Return

  • Global shipping support and protective packaging

  • Flexible payment options: credit card, PayPal, ACH, wire transfer

Ideal For:

  • Fiber labs and telecom teams using AQ6370D for advanced DWDM and broadband spectrum testing

  • Research centers needing traceable calibration and high wavelength accuracy

  • Resellers and buyers restoring used units for resale or redeployment

  • Engineers troubleshooting trace noise, sweep failure, or alignment drift

Restore Performance & Accuracy to Your Yokogawa AQ6370D

If your Yokogawa AQ6370D Optical Spectrum Analyzer is producing errors, signal drift, or display issues—or if it just needs recalibration—our expert service team is ready. With advanced diagnostics, precision optical alignment, and certified NIST-traceable calibration, we’ll bring your AQ6370D back to like-new performance.

Request a quote today and let us restore your AQ6370D for accurate, reliable optical spectrum analysis.

Get a Quick Quote

Email: Sales@aumictech.com

Call:  +1 ‪(484) 841-9341‬

Price Starts from:

$2,480.00

Service and repair for Yokogawa AQ6370D Optical Spectrum Analyzer (OSA). Includes diagnostics, component replacement, calibration, and performance verification to ensure optimal operation.

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.