Measure Lasers to 120 kW

MKS Ophir, Light & Measurement

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Measuring and controlling laser power is the only way to achieve reproducible results. The Ophir^® 120K-W Laser Power Sensor measures very high power fiber, infrared, and Nd:YAG lasers from 10 kW to 120 kW. The sensor features a unique, compact design with a 200 mm aperture. The only commercial sensor for measuring very high power 120 kW lasers, the sensor is designed for heavy-duty applications, such as deep penetration welding, drilling, and cutting large products in the field, metal forming, and military directed-energy applications. The 120K-W Laser Power Sensor measures high-power beams at a distance past the focal spot of the laser or, alternatively, at a distance from the diverging fiber output where the beam has expanded to 100 mm.

A reflective cone in the meter deflects the laser beam onto the inner circumference of the sensor. This increases the radiated area and reduces the power density to manageable levels. As the cone dissipates the beam, it captures over 99% of the radiation, minimizing safety hazards. The response time of the 120K-W is less than 1 minute, a fraction of the time required by custom, non-commercial systems.

Unlike other high-power measurement systems, the Ophir 120K-W Laser Power Meter is a compact, portable unit. It consists of a beam dump with overall dimensions of about 50 cm diameter x 50 cm deep, and a water flow power measurement unit of 11x15x34 cm. The meter connects to a PC via RS-232 and is provided with software that displays and graphs the power and water flow rate. A smart connector output displays power readings on any of Ophir’s smart displays.

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