UV-Enhanced Detector Designed for Laser Power Monitoring Applications

The UVG20S from Opto Diode features a 5.5 mm active area, stable responsivity over wide temperature ranges, and 100% internal quantum efficiency from 200 to 400 nm By Joseph Macey / 11 Jan 2021

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Opto Diode Corporation, an ITW company, has announced an ultraviolet-enhanced detector featuring a 5.5 mm diameter active area – the UVG20S.

The photodiode is ideal for UV detection between 190 nm to 400 nm spectral wavelengths with a full spectrum of 190 nm out to 1000 nm. The device features stable responsivity over wide temperature ranges and features 100% internal quantum efficiency from 200 to 400nm.

The photodetector is packaged with a UV quartz window that is epoxy-bonded in place making it ideal for integration into new or existing systems.

The circular active area device is specially designed for high-energy detection, such as laser power monitoring applications. Under test conditions at 254 nm, the UVG20S detector’s responsivity ranges from 0.105 A/W (minimum) to 0.115 A/W (typical). Shunt resistance is 100 MOhms (typical) and reverse breakdown voltage is 50 volts (typical).

At 0 V bias, capacitance is 1.5 nF (typical) and response time is 4 microseconds (typical).

Storage and operating temperatures range from -20 °C to 80 °C and the lead soldering temperature is 260 °C.

Posted by Joseph Macey Joseph Macey is a Content Specialist at Defense Advancement, where he has focused on emerging defense technologies since joining in 2022. His expertise spans tactical UAS, rugged computing, and Satellite Communication Systems. After graduating in Journalism from Falmouth University, Joseph began his career in 2019 as a local reporter. His journalism background enhances both his reporting and interview skills, enabling him to provide insightful, authoritative analysis of the latest trends shaping the defense industry. Connect
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