HP / Agilent 86120C Optical Wavelength Meter – Expert Repair, Precision Alignment & NIST-Traceable Calibration
We offer specialized repair, calibration, and maintenance services for the HP / Agilent 86120C Optical Wavelength Meter—a high-precision instrument designed for accurate wavelength and frequency measurement in fiber optic systems. Widely used in optical component testing, DWDM system development, and photonics research, the 86120C is known for its broad wavelength range (1270–1650 nm) and high absolute wavelength accuracy. If your unit is showing wavelength drift, startup errors, or optical instability, our experienced team can restore it to full performance with factory-grade precision and certified calibration.
Complete Repair & Calibration Workflow
Thorough Functional Diagnostics
Each 86120C unit undergoes a comprehensive evaluation to test:
Wavelength accuracy and resolution across its full operating range
Internal reference laser output and wavelength locking stability
Signal detection sensitivity and repeatability
Input connector performance and optical coupling
Display and front panel operation
GPIB, USB, and LAN interface communication
Using calibrated tunable laser sources and optical references, we simulate real measurement conditions to detect issues with internal optics, electronics, and firmware.
Common Issues We Repair
No signal detection or incorrect wavelength readings
Wavelength drift or failure to lock to internal reference
Aging or unstable internal HeNe laser source
Detector degradation or poor optical signal sensitivity
Damaged FC/APC input connectors or fiber coupling misalignment
Firmware crashes, boot-up failures, or UI freezes
Display screen dimming or malfunction
Communication port failure (GPIB, USB, LAN)
Component-Level Repair & Replacement
Our technicians perform deep board-level repair, including:
Replacing failed capacitors, ICs, voltage regulators, and relays
Repairing power supply modules, laser drivers, and signal processors
Restoring communication interface boards and internal memory components
Optical Realignment & Laser Tube Replacement
We clean and realign internal optics, including mirrors, detectors, and collimators. If the internal HeNe reference laser is unstable or nearing end-of-life, we replace the tube and realign the optical path to ensure wavelength locking stability.
Firmware & System Verification
We validate and, if needed, reprogram firmware to ensure smooth operation. Internal diagnostics and built-in self-tests are run to confirm all functions perform within factory specifications.
NIST-Traceable Calibration & Performance Verification
Each repaired unit undergoes full NIST-traceable calibration, including:
Wavelength accuracy checks using certified reference lasers
Signal detection linearity and repeatability
Spectral resolution and locking verification
A full calibration certificate is included with before-and-after performance results.
Why Choose Our Services?
Years of experience servicing Agilent / HP 86120 series wavelength meters
In-depth knowledge of internal optics, laser systems, and signal processing
High repair success rate on both hardware and wavelength accuracy issues
Fast turnaround – typically 3 to 5 business days
Warranty on all repair services and a 15-day Right of Return
Worldwide shipping with professional packaging
Flexible payment options: PayPal, credit card, ACH, wire transfer
Ideal For:
Labs and manufacturers working on DWDM, laser sources, and optical R&D
Telecom operators relying on legacy 86120C units for field calibration
Organizations restoring used or non-functional wavelength meters
Test environments needing certified wavelength accuracy and repeatability
Get Your HP / Agilent 86120C Wavelength Meter Fully Restored
If your Agilent 86120C Optical Wavelength Meter is producing unreliable data, showing signs of drift, or no longer locking to reference, we’re here to help. Our expert service includes full diagnostics, optical alignment, HeNe laser servicing, and certified calibration—restoring your unit to factory-grade performance.
Request a quote today to schedule service or get more information about our repair process for the 86120C.
