Photodetector DET Series

Features 10 Models Cover the 150 nm to 2.6 μm Wavelength Range Rise Times as Fast as 1 ns Thin Profile [3/4" (19.1 mm)] Allows Measurements in Tight Spaces SM05 Lens Tube, SM1 Lens Tube, Cage System, and Ø1/2" Post Compatible Internal A23 Bias Battery (Included) Thorlabs' biased photodetectors are available in ten models that cover the wavelength range from the UV to the mid-IR (150 nm to 2.6 µm) with improved bandwidth and NEP performance over previous models. The slim housing allows the optical detector to slip into tight setups. Each model comes complete with a fast PIN photodiode and an internal bias battery packaged in a rugged aluminum housing. With a wide bandwidth DC-coupled output, these detectors are ideal for monitoring fast pulsed lasers as well as DC optical sources. The direct photodiode anode current is provided on a side panel BNC. This output is easily converted to a positive voltage using a terminating resistor. When looking at high-speed signals, Thorlabs recommends using a 50Ω load resistor (sold below). For lower bandwidth applications, our variable terminator (also sold below) quickly adjusts the measured voltage.