The DET30 bias photodetector is a compact, unamplified, fiber-optic input, battery-powered detector with very low noise, and can be used to detect optical signals with ps-level pulse widths.
The G-1550-200-L-D-T-AA-G3-T-L is 1550nm fiber-coupled acousto-optic modulator(AOM), Frequency 200Mhz, deal for fiber optic sensing system applications.