We’ve got a new photoreceiver available over at our sister site, Hobbs ElectroOptics. The QL03 Photoreceiver comes out of several proof-of-concept systems where we needed a high-sensitivity, low-noise optical receiver for low-light applications.
It features a massive 150 mm² photodiode with slight magnification from an immersion lens, making it especially effective for diffuse light measurements, spectroscopy, and fluorescence detection—plus, setup is a breeze since you’re aiming at a barn door.
With a 1 MΩ transimpedance gain and DC–750 kHz bandwidth, it offers a rare combination of high sensitivity, fast response, and low noise, delivering shot-noise-limited performance above 100 nA across its full bandwidth.
A carefully designed bootstrap topology enables this unusual balance of speed, noise performance, and collection area. Built to handle real lab conditions, the QL03 is engineered to make precision optical measurements as easy as possible.
More details at hobbs-eo.com.