High accuracy, high damage threshold energy sensor for medical lasers from Coherent

Aug. 5, 2009

Coherent Inc.'s (Santa Clara, CA) (Nasdaq: COHR) laser pulse energy sensor, optimized specifically for use with medical lasers, combines high accuracy, high damage threshold and a large active area. The new J-50MB-IR EnergyMax Sensor measures laser beam diameters up to 30 mm from 1 mJ to 3J, over the 500 nm to 3 micron spectral range. It works with long pulse, infrared lasers, and is compatible with lasers commonly used for aesthetic dermatological treatments and dental procedures.

Coherent Inc.'s (Santa Clara, CA) (Nasdaq: COHR) laser pulse energy sensor, optimized specifically for use with medical lasers, combines high accuracy, high damage threshold and a large active area. The new J-50MB-IR EnergyMax Sensor measures laser beam diameters up to 30 mm from 1 mJ to 3J, over the 500 nm to 3 micron spectral range. It is designed to work with long pulse, infrared lasers, and is compatible with the holmium (2100 nm), erbium (2940 nm), ruby (694 nm) and Nd:YAG (532 nm and 1064 nm) lasers commonly used for laser hair removal and other aesthetic dermatological treatments and dental procedures.

The J-50MB-IR combines Coherent's MaxBlack coating, a large area pyroelectric detector, and a set of integrated diffusers. Its damage threshold is five times higher than that of competing products, Coherent says. Built-in spectral compensation promises energy measurement accuracy of ~3% over the entire 500 nm to 3 µm spectral range, which is more than twice the accuracy of any other sensor available for this wavelength range, according to Coherent.

The J-50MB-IR is more compact, yet offers a larger active area than other available sensors.

Learn more about the J-50MB-IR EnergyMax sensor at Coherent's website.

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original press release

First High Accuracy, High Damage Threshold Energy Sensor for Medical Lasers

Santa Clara, Calif., July 30, 2009 -- Coherent Inc. (Santa Clara, CA) (Nasdaq: COHR) has introduced a laser pulse energy sensor specifically optimized for use with medical lasers that combines high accuracy, high damage threshold and a large active area. The new J-50MB-IR EnergyMax Sensor measures laser beam diameters up to 30 mm from 1 mJ to 3J, over the 500 nm to 3 µm spectral range. It is particularly optimized for use with long pulse, infrared lasers, making it compatible with the Holmium (2100 nm), Erbium (2940 nm), Ruby (694 nm) and Nd:YAG (532 nm and 1064 nm) lasers commonly used for hair removal and other aesthetic dermatological treatments and dental procedures.

The J-50MB-IR combines Coherent's unique MaxBlack coating and a large area pyroelectric detector, together with a set of integrated diffusers, to achieve a damage threshold that is five times higher than that available from competitive products. Furthermore, built in spectral compensation delivers an energy measurement accuracy of plus or minus 3% over the entire 500 nm to 3 µm spectral range, which is over twice the accuracy of any other sensor available for this wavelength range.

The J-50MB-IR also offers enhanced convenience and flexibility over other sensors. In particular, it is more compact, yet offers a larger active area than other available sensors. This enables it to measure larger beams, and also be used in tight spaces inside of instruments. More details about the J-50MB-IR EnergyMax sensor can be found on our website at www.coherent.com/energymax.

Founded in 1966, Coherent, Inc. is a Russell 2000 Index company and a world leader in providing laser-based solutions to the commercial and scientific research markets. Please direct any questions to Sean Bergman, product manager, Photonics Instruments Components Business Unit, at (503) 454-5785. For more information about Coherent, including product and financial updates, visit our website at http://www.Coherent.com.

Posted by Barbara G. Goode, [email protected], for BioOptics World.