YAG/Harmonics and IR Sensors

Benefits

• J-50MB-YAG operates at Nd:YAG fundamental and harmonics, or throughout the IR using a single diffuser and provides very high energy or peak power handling capability used in medical procedures.
• J-50MB-IR operates from 500 to 2940 nm and provides high damage threshold for long pulse lasers often
• Enable pulse energy measurements from 1 mJ to 10J (contact factory for part number for >3J applications)
• Spectral compensation characteristics built into each unit
• Onboard sensors provide automatic temperature compensation

The YAG/Harmonics and IR EnergyMax Series comprises three different models that work either throughout the visible and near-IR, or throughout the near-IR and mid-IR, without the need to change diffusers. Both these detectors mate Coherent’s unique MaxBlack coating with a novel diffuser to produce superior damage resistance characteristics. This enables operation with lasers that produce very high energy per pulse or very high peak fluences.

The J-50MB-YAG sensor is rated to withstand the following energy densities:

The J-50MB-IR is specifically designed for high damage threshold when used with pulsed lasers used in medical procedures such as Erbium and Holmium lasers. It has a damage threshold in excess of 100 J/cm at 2940 nm with a 100 µs pulse width.

YAG/Harmonics and IR Series products are also “smart” sensors, and incorporate onboard electronics to automatically correct for ambient temperature, as well as built-in wavelength compensation factors. These sensors are compatible with Coherent LabMax-TOP, 3sigma, FieldMaxII-TOP, FieldMaxII-P, EPM1000 and EPM2000 meters.

Both sensors accept an optional heatsink, which can be easily attached by the user to extend the maximum energy or average power range. Specifically, these heat sinks allow the J-25MB-IR sensor to be used up to 15 W average power, and the J-50MB-YAG sensor to be used up to 45 W average power.

The following table outlines the average power handling capability of the sensors when used with optional user installable heat sinks.

Part Numbers

Specifications