Keysight / Agilent / HP 81002-68705 Part II Heatsink for Agilent 81002FF and Agilent 81628B

The Keysight/Agilent/HP 81002-68705 Part II is a thermal management heatsink accessory engineered for the Agilent 81002FF Integrating Sphere and Agilent 81628B Optical Power Head. It dissipates heat generated during high-power optical measurements, maintaining stable operating temperatures and preventing thermal runaway that could compromise measurement accuracy and device longevity.

Technical Specifications

Product Designation: 81002-68705 Part II

Primary Function: Thermal dissipation for coupled optical measurement devices

Thermal Management: Actively manages heat during sustained high-power operation

Key Features

Prevents thermal-induced performance degradation in integrated measurement systems

Maintains stable operating conditions critical for high-power optical testing

Designed for operation in systems handling optical power levels to +40 dBm (10 W)

Supports thermal stability above +34 dBm (2.51 W), where metal part temperature limits become a design constraint

Compatibility & Integration Agilent 81002FF Integrating Sphere The 81002FF accommodates high optical power measurements up to +40 dBm (10 W) with integrating sphere geometry. Compatible with Agilent 8163A, 8166A, and HP 8153A Lightwave Multimeters. Accepts large emission sources and high numerical aperture (NA) inputs to 0.5. Agilent 81628B Optical Power Head This sensor head is rated for high-power measurements to +40 dBm and incorporates a built-in integrating sphere. Standard configuration uses threaded type adapters; removing the adapter exposes an 8 mm diameter aperture for open-beam or custom fiber holder configurations. Interfaces with 816x mainframes through 81618A or 81619A interface modules. Thermal management becomes essential during sustained operation above +34 dBm, where metal component temperature limits apply. The 81002-68705 Part II heatsink directly addresses thermal constraints in both devices, ensuring measurement repeatability and instrument protection during extended high-power operation.