Service & Repair of Agilent 86140B Optical Spectrum Analyzer OSA

Agilent 86140B Optical Spectrum Analyzer – Professional Repair, Service & NIST-Traceable Calibration

We specialize in the expert repair, calibration, and maintenance of the Agilent 86140B Optical Spectrum Analyzer (OSA), a trusted solution for high-resolution optical signal analysis in telecom, photonics, and R&D environments. Known for its superior wavelength accuracy, wide dynamic range, and precision measurements, the 86140B is a critical tool that requires skilled hands when servicing or restoring. Our technical team is experienced with both hardware-level and optical alignment procedures, ensuring your unit meets or exceeds original performance standards.

Our Process – Thorough Inspection, Skilled Repair, and Accurate Calibration

Initial Evaluation and Diagnostics
Every 86140B that arrives in our lab is thoroughly inspected. We test all major subsystems including:

• Wavelength accuracy

• Optical signal power levels

• Grating movement and resolution bandwidth settings

• Front panel controls and display performance

• Power supply and internal fans

We use certified optical sources and tunable lasers to simulate real-world test conditions and determine root causes of any failures.

Typical Issues We Resolve

• No optical signal or significantly reduced sensitivity

• Wavelength drift or inaccurate spectral data

• Internal grating or monochromator motor failure

• Fiber input port or connector damage (FC/APC, SC/APC)

• Firmware boot errors or non-responsive UI

• Failing display (LCD/CRT), front panel buttons, or encoder knob

• Power supply instability or intermittent reboots

Component-Level Electronics & Mechanical Repair
Using precision tools and schematics, we diagnose and repair faults on the mainboard, analog detector boards, internal power supply units, and signal processing circuits. We also repair or replace failing stepper motors, encoders, and optical grating assemblies.

Optical Path Realignment and Cleaning
Clean, aligned optics are essential for reliable measurement. We realign the internal monochromator, replace worn connectors, clean mirrors, lenses, and fiber interfaces, and recalibrate the signal path for optimal throughput and accuracy.

Self-Test Validation and Firmware Refresh
We perform complete internal diagnostics using the built-in self-test procedures, addressing any firmware-related issues and applying updates when needed for improved stability and feature access.

NIST-Traceable Calibration with Report
After repair, each Agilent 86140B OSA is carefully calibrated using NIST-traceable reference lasers and power sources. Our calibration process includes:

• Wavelength accuracy verification

• Power linearity and absolute accuracy checks

• Resolution bandwidth and dynamic range validation
  A detailed calibration certificate with before-and-after test data is included.

Why Choose Us?

• Specialized knowledge in Agilent / HP / Keysight optical spectrum analyzers

• Advanced test equipment and procedures simulating real-world conditions

• Fast repair turnaround (1–3 days in most cases)

• Component-level diagnostics for deep repairs, not just surface fixes

• Warranty on all repair services and 15-day Right of Return

• International shipping and secure packaging

• Multiple payment options (credit card, PayPal, ACH, wire transfer)

Who Benefits from This Service?

• Optical labs and telecom R&D teams maintaining legacy equipment

• Facilities needing urgent repairs for test station uptime

• Resellers requiring functional and calibrated 86140B units

• Engineering teams troubleshooting unstable or drifting measurements

Get Your 86140B Running Like New

If your Agilent 86140B Optical Spectrum Analyzer is experiencing any issues—from wavelength errors to complete failure—our expert team is ready to help. We combine deep technical expertise, high-end diagnostic tools, and fast, reliable service to bring your unit back to life.

Contact us today to get a quote or schedule service for your 86140B unit.