Service & Repair of HP 70950B Optical Spectrum Analyzer OSA

HP 70950A & 70950B Optical Spectrum Analyzer – Expert Repair, Module-Level Service & NIST-Traceable Calibration

We provide professional repair, calibration, and refurbishment services for the HP 70950A and 70950B Optical Spectrum Analyzers, modular optical test instruments designed for use in the HP 70000 series mainframe systems. These OSAs are widely used in fiber optic communication testing, laser source characterization, and photonics lab environments. Known for their solid performance, broad wavelength coverage, and integration with other RF/optical modules, the 70950A/B remain critical in many legacy systems. If your module is failing, showing signal degradation, or producing inaccurate readings, our team offers full restoration and NIST-traceable calibration.

Our OSA Service Workflow

Full Module Diagnostics
Each 70950A or 70950B module undergoes detailed evaluation, including:

• Optical signal detection and wavelength accuracy testing

• Trace repeatability and span/sweep consistency

• Input port functionality and connector condition

• Internal detector response and signal processing

• Power stability and inter-module communication via HP 70000 mainframe

• Front-panel display and menu navigation (if applicable)

We test modules inside a certified HP 70000 Series mainframe chassis using tunable laser sources and known wavelength references.

Common Issues We Repair

• No signal or intermittent optical detection

• Wavelength inaccuracy or measurement drift

• Failed internal photodiodes or signal amplifiers

• Sweep or span malfunction

• Damaged FC/PC or FC/APC fiber input connectors

• Module not recognized or not initializing in mainframe

• Internal power supply failure or communication bus errors

• Analog or digital circuit board faults

Component-Level Electronics Repair
Our technicians perform board-level repairs, including:

• Replacing aging capacitors, voltage regulators, and op-amps

• Repairing analog signal processing and A/D conversion circuits

• Fixing communication interface errors between module and mainframe

• Restoring or replacing failed detector circuits or calibration memory modules

Optical Alignment & Port Refurbishment
We clean and realign internal optical components, including lenses, filters, and fiber coupling paths. Damaged or worn input connectors are repaired or replaced to ensure secure and accurate fiber insertion.

Mainframe Communication & Software Validation
Each module is tested for compatibility and full function within the HP 70000 system environment. Menu functionality, softkeys, and trace data outputs are verified to ensure error-free operation and accurate reporting.

NIST-Traceable Calibration
After repairs, each unit is recalibrated using NIST-traceable optical reference sources, including:

• Wavelength accuracy verification using standard lasers

• Optical power response and linearity testing

• Sweep speed and span accuracy confirmation
  We provide a detailed calibration certificate showing before-and-after performance metrics.

Why Choose Our Services?

• Decades of experience servicing HP optical and modular spectrum analyzers

• In-depth knowledge of HP 70000 series system architecture

• Fast turnaround – most repairs completed within 3–5 business days

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

• Global shipping with protective packaging and customs-friendly documentation

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

Ideal For:

• Labs and R&D centers using HP 70950A/B for legacy optical test systems

• Fiber optic testing environments requiring precise wavelength and power analysis

• Companies refurbishing or reselling HP 70000 series instruments

• Engineers troubleshooting system integration or module startup issues

Restore Functionality to Your HP 70950A or 70950B Optical Spectrum Analyzer

If your HP 70950A or 70950B Optical Spectrum Analyzer is underperforming, failing to start, or delivering inaccurate optical data, we’re ready to help. With advanced diagnostic tools, component-level repair expertise, and certified calibration procedures, we restore your module to full working condition.

Contact us today to request a service quote or start the repair process for your HP 70950A or 70950B OSA.