News | February 6, 2019

MKS Announces Ophir® Fast Photo Diodes For High Speed Measurement Of Pulsed Lasers And VCSELs

Source: Ophir Photonics
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Andover, MA – February 6, 2019 – MKS Instruments, Inc. (NASDAQ: MKSI), a global provider of technologies that enable advanced processes and improve productivity, has announced at SPIE Photonics West the Ophir® Fast Photo Diodes, high speed, biased PIN photodiode detectors for viewing and measuring pulsed lasers and VCSELs. The detectors use the photovoltaic effect to convert fast optical pulses into electrical signals. They are available in a variety of configurations that cover the spectrum from 190nm to 1700nm. Rise times and fall times are fast, ranging from as low as 25ps. Bias voltage is supplied by internal batteries and/or external power supply, depending on the model.

Fast Photo Diodes are easy to operate and require no calibration. Simply plug a coaxial cable into the detector’s BNC output and terminate into 50 ohms at an oscilloscope or spectrum analyzer. Designed for characterizing the operation of pulsed lasers during R&D, the photodetectors are ideal for use in VCSELs for gesture recognition and remote sensing, as well as for medical devices, consumer electronics, and industrial applications.

Availability & Pricing

The Ophir Fast Photo Diodes are available now. OEM prices available on request.

Fast Photo Diodes DATA SHEET:

About MKS Instruments

MKS Instruments, Inc. is a global provider of instruments, subsystems and process control solutions that measure, monitor, deliver, analyze, power and control critical parameters of advanced manufacturing processes to improve process performance and productivity for our customers. Our products are derived from our core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, residual gas analysis, leak detection, control technology, ozone generation and delivery, power, reactive gas generation, vacuum technology, lasers, photonics, sub-micron positioning, vibration control and optics. We also provide services relating to the maintenance and repair of our products, installation services and training. Our primary served markets include the semiconductor, industrial technologies, life and health sciences, research and defense.  Additional information can be found at

About the Ophir Brand

Ophir is a brand within the MKS Instruments Light & Motion division. The Ophir product portfolio consists of laser and LED measurement products, including laser power and energy meters, laser beam profilers measuring femto-watt to hundred-kilowatt lasers, high-performance IR and visible optical elements, IR thermal imaging lenses and zoom lenses for defense and commercial applications, OEM and replacement high-quality optics and sub-assemblies for CO2 and high-power fiber laser material processing applications. Ophir products enhance our customers’ capabilities and productivity in the semiconductor, industrial technologies, life and health sciences, research and defense markets. For more information, visit

Source: MKS Instruments, Inc.