Pyroelectric energy sensors


North Logan, UT - Ophir Photonics,  a Newport Corporation brand, has announced two new pyroelectric laser energy sensors, the PE50BB-DIF-C and the PE50-DIF-ER-C. They complete Ophir's PE-C line of pyroelectric pulsed laser sensors: compact devices that provide a low measurable energy, long measurable pulse width, and high accuracy. The PE50-DIF-ER-C measures average power to 60 W and has a wide dynamic range that extends to infrared lasers, including 2.94 micron Erbium laser pulses. The PE50BB-DIF-C features a spectrally flat BB (broadband) coating, usable from far UV to far IR. 

The new laser energy sensors feature large, active aperture areas to 46 mm and support pulse widths up to 20 ms. They have a user adjustable threshold that prevents false readings in noisy environments. In addition, the sensors provide:

• PE50-DIF-ER-C: Repetition rates up to 10 kHz, energy measurement down to 100 microjoule, special diffuser for high damage thresholds up to 20 J/cm2 for 300 microsecond pulses.

• PE50BB-DIF-C: Energies down to 0.1 mJ and flat spectral response from 0.19 to 20 micron with diffuser removed. With diffuser, energy densities of up to 3 J/cm² for nanosecond pulses.

The PE-C laser energy sensors are designed for high power, short pulse YAG and harmonic generation applications in a broad range of industries, as well as long pulse lasers for applications from dermatology to micromachining to industrial welding.

The PE50BB-DIF-C and PE50-DIF-ER-C laser sensors work with most Ophir smart displays or PC interfaces, including the Nova II, Vega, and Juno. Each display features a "Smart Connector" interface that automatically configures and calibrates the display when plugged into one of the company's measurement sensors.

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