DUMA OPTRONICS BEAM BM-7 InGaAs5DUMA Optronics BEAM BM7 InGaAs5 Detectors The BEAM BM7 series uses InGaAs5 photodiode technology to deliver high sensitivity across 8001700 nm. With a compact benchtop module, it offers low dark current and high bandwidth for spectroscopy, fiberoptic testing, and laser control applications. Key Specifications Brand: DUMA Optronics Model: BEAM BM7 InGaAs5 Spectral Range: 8001700 nm Responsivity: 0. 9 A W at 1310 nm Active Area: 0. 8 mm Dark Current: <