Yokogawa AQ6370C Optical Spectrum Analyzer – Expert Repair, Optical Realignment & NIST-Traceable Calibration
We provide specialized repair, calibration, and maintenance services for the Yokogawa AQ6370C Optical Spectrum Analyzer, one of the most advanced OSAs used in DWDM, CWDM, laser testing, fiber optic communications, and photonics R&D. Known for its wide dynamic range, fast sweep speeds, and high wavelength resolution, the AQ6370C is a critical instrument in labs, production lines, and telecom test environments. If your unit is displaying errors, failing optical tests, or no longer functioning correctly, our expert team can restore it to full operational condition with factory-level precision and NIST-traceable calibration.
Our Complete Service & Repair Process
Full Diagnostic Evaluation
Each AQ6370C unit undergoes a detailed evaluation using certified tunable lasers, calibrated power meters, and reference sources to test:
Wavelength accuracy across the full range (600–1700 nm)
Dynamic range and sensitivity at various levels
Sweep time, resolution bandwidth, and span accuracy
Trace repeatability and signal stability
Input port performance and coupling alignment
Display, keypad, touchscreen (if equipped), and system boot
GPIB, Ethernet, and USB interface functionality
Common Issues We Repair
No optical signal detected or weak signal sensitivity
Incorrect wavelength readings or drift over time
Internal noise floor elevation or unstable trace
Slow or failed sweep functions
Unit not booting, freezing during startup, or showing firmware errors
Faulty input connectors (FC/APC, SC, LC) or damaged ports
Communication interface failure (LAN/GPIB/USB)
Display screen issues or touch panel malfunctions
Internal fan, temperature sensor, or power supply failures
Component-Level Electronic Repair
We perform in-depth circuit board-level repairs, including:
Replacement of faulty capacitors, regulators, logic ICs, and signal amplifiers
Repair of detector boards, sweep control circuits, and signal processing modules
Power supply restoration and fan control diagnostics
Repair or replacement of USB/GPIB/LAN interface boards
Optical System Realignment & Cleaning
Precision wavelength measurement relies on a clean and well-aligned internal optical system. Our service includes:
Cleaning and recalibrating fiber input ports, collimators, lenses, and mirrors
Re-aligning the internal monochromator and diffraction grating assembly
Testing and optimizing optical signal paths for minimal insertion loss and maximum dynamic range
Firmware Validation & Functional Tests
We validate system firmware, perform internal diagnostics, and test all core measurement functions, ensuring:
Proper trace capture and repeatability
Correct auto-sweep and auto-scaling behaviors
Fast and error-free operation across all measurement ranges
Remote command support and software control compatibility
NIST-Traceable Calibration
After completing repairs, each AQ6370C is calibrated using NIST-traceable optical reference sources, ensuring:
Certified wavelength accuracy
Power measurement linearity and repeatability
Dynamic range, resolution bandwidth, and span performance
A calibration certificate with before-and-after data is included for compliance and documentation.
Why Clients Choose Us
Extensive experience with Yokogawa AQ-series analyzers, including AQ6370C, AQ6370B, and AQ6373
Specialized optical alignment tools and factory-style testing procedures
Fast turnaround – typically 3–5 business days
Warranty included on all repairs with a 15-day Right of Return
Global service capability with secure shipping and customs-ready paperwork
Payment options include credit card, PayPal, wire transfer, and ACH
Ideal For:
Fiber optic labs and manufacturers using AQ6370C for DWDM or broadband spectrum analysis
Researchers and R&D teams working with lasers, amplifiers, or passive optical components
Telecom test environments requiring highly accurate and calibrated wavelength measurement
Buyers and resellers of used units needing full reconditioning and compliance
Get Your Yokogawa AQ6370C Fully Restored & Calibrated
If your Yokogawa AQ6370C Optical Spectrum Analyzer is not performing to specification, producing inaccurate data, or experiencing hardware issues, we can help. Our expert technicians deliver high-quality repairs, detailed diagnostics, and NIST-traceable calibration to restore accuracy, stability, and performance.
Request a quote today to get your AQ6370C serviced, calibrated, and returned to peak condition.
