The chip is a PIN-type photodetector made of InGaAs material, responding to near-infrared light 1100-1650nm, in a square metal flange package with FC/APC interface, suitable for integration in housing structures such as modules.
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.
YB Photonics VS Thorlabs quick selection table, use this table to quickly find replaceable models. The table lists the correspondence between amplified detectors, APDs, bias detectors, balanced detectors, etc.