High Speed Photodetector, 830-2150 nm Battery Biased Extended InGaAs Detector, 10 GHz

The 818-BB-51 High Speed InGaAs Detector is built from a free-space extended InGaAs photodiode with a 40 um active diameter and a fast <28 ps rise time. With the wavelength range of 830 - 2150 nm, it allows monitoring Thulium (Tm) and Holmium (Ho) doped lasers as well as other NIR lasers. It includes a built-in battery-powered 3V bias, an on-off switch, and an SMA connector output. The photodetectors have an internal 50 Ω termination. As the responsivity data is applicable to the diode only, the detector output should be determined based on 1/2 the responsivity of that shown on graph. The batteries are easily replaceable, and by disconnecting the detector from the oscilloscope input, when not in use, you can extend the lifetime of the batteries. It replaces the obsolete Model 818-BB-50. It is equivalent to Coherent's Model ET-5000 (P/N 120-10105-0001).