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Service & Repair of HP 70951A Optical Spectrum Analyzer OSA

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

HP 70951A & 70951B Optical Spectrum Analyzer – Professional Repair, Modular Diagnostics & NIST-Traceable Calibration

We offer expert repair, refurbishment, and calibration services for the HP 70951A and 70951B Optical Spectrum Analyzer (OSA) modules, part of the HP 70000 Modular Measurement System. These high-performance modules are used in a wide range of fiber optic, photonics, and DWDM applications, known for their precision, wide wavelength range, and seamless integration into modular mainframes. If your module is showing signal detection issues, wavelength drift, or communication errors with the mainframe, our skilled technicians can restore it to full functionality using advanced diagnostics and certified calibration.

Our Repair & Calibration Workflow

In-Depth Module Evaluation
Each 70951A or 70951B unit undergoes complete system diagnostics inside a working HP 70000 mainframe, including:

  • Wavelength accuracy and trace repeatability testing

  • Optical signal detection sensitivity

  • Sweep and span functionality

  • Display menu access (where applicable) and remote communication

  • Input connector inspection (FC/PC or FC/APC)

  • Module initialization and bus communication within the mainframe

We test using calibrated laser sources and optical references to simulate real operating environments and uncover subtle performance issues.

Common Issues We Repair

  • No optical signal or fluctuating measurement

  • Inaccurate or drifting wavelength readings

  • Detector degradation or complete failure

  • Module not initializing or unrecognized by mainframe

  • Analog board failures or signal processing errors

  • Power supply faults or noisy voltage lines

  • Sweep or trace freeze issues

  • Damaged input ports or worn fiber connectors

Component-Level Repair & Refurbishment
We perform deep board-level diagnostics and component replacement, including:

  • Power regulation circuits and analog front-end restoration

  • A/D conversion and digital logic troubleshooting

  • Replacement of memory modules, op-amps, capacitors, and regulators

  • Repair of inter-module communication pathways

Optical Cleaning & Realignment
Internal optical paths are cleaned and checked for signal integrity. Fiber inputs, lens assemblies, and beam paths are realigned to restore signal strength, reduce insertion loss, and improve trace quality.

Mainframe Compatibility Testing
Each repaired 70951A/B is tested in a certified HP 70000 Series system. We validate trace generation, calibration memory access, softkey functionality, and remote control communication (GPIB or other available ports).

NIST-Traceable Calibration
After repairs, we perform a full NIST-traceable calibration, including:

  • Wavelength accuracy verification using certified reference lasers

  • Optical power response and linearity tests

  • Sweep and resolution bandwidth accuracy

  • Trace noise floor and signal repeatability validation
    A detailed calibration certificate is included with performance test data.

Why Choose Us?

  • Proven expertise with HP 70951A, 70951B, 70950 series, and HP 70000 Modular Measurement Systems

  • Advanced test equipment for full system integration and signal simulation

  • Fast turnaround time – typically 3–5 business days

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

  • Worldwide shipping support and professional protective packaging

  • Multiple payment options: ACH, credit card, wire transfer, and PayPal

Ideal For:

  • Labs and facilities using HP 70951A/B modules in legacy optical test setups

  • Engineers troubleshooting module startup or accuracy issues

  • Refurbishers and resellers restoring 70000 series test equipment

  • Teams requiring certified calibration for compliance or quality systems

Restore Accuracy & Performance to Your HP 70951A or 70951B OSA

If your HP 70951A or 70951B Optical Spectrum Analyzer is malfunctioning, producing unstable measurements, or not initializing, we’re here to help. Our detailed diagnostics, component-level repair, and NIST-traceable calibration process ensures your module returns to precise, reliable operation—fully compatible with your HP 70000 mainframe system.

Request a quote today and let us restore your HP 70951A/B to peak performance.

Get a Quick Quote

Email: Sales@aumictech.com

Call:  +1 ‪(484) 841-9341‬

Price Starts from:

$2,480.00

Service and repair for the HP 70951A Optical Spectrum Analyzer (OSA). Includes diagnostics, calibration, and component-level repair to restore the instrument to its original performance specifications.

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.