This part is a kind of semiconductor called AQ6370.

Function of this product has optical Spectrum Analyzer.

Manufacturers : Yokogawa

Image and pinout :

Some of the text within the PDF file :

AQ6370 OPTICAL SPECTRUM ANALYZER World Class Optical Performance & Flexibility* • • • • High wavelength resolution: 0.02 nm Wide close-in dynamic range Multimode fiber test capability (up to GI 62.5/125µm) Pulsed light measurement capability * In the diffraction-grating-based optical spectrum analyzer industry as of January 2006 Improves Measurement Throughput • Fast measurement • Fast data transfer and storage Expedites Development of Automated Test Systems • Supports GP-IB, RS-232C, and Ethernet interfaces • Compatible with SCPI and supports AQ6317 series remote commands • Built-in simple macro programming function Enhances User Friendliness • Supports mouse and keyboard operation (USB & PS/2) • Trace zoom capability Facilitates Frequent D [ ... ]

AQ6370 PDF Datasheet Download