FPA102

Emitter And Sensor Matched Pair Arrays Optoelectronic Products 4-3 FPA100 FPA101 FPA102 General Description The FPA 100, FPA 10 1 and FPA 102 are source / sensor arrays each of which consists of a set of two modules: one, an array of infrared emitters, and two, an array of infrared sensors. The source module consists of an array of GaAs infrared-emitting diodes. When forward biased, these diodes emit an intense narrow band of infrared (nonvisible) radiation at a wavelength of 900 nm. The sensor modules consist of an array of npn phototransistors which are sensitive to visible as well as infrared radiation (400 to 1100 nm). They are most sensitive to infrared radiation; therefore, the source module's emission wavelength is very nearly. perfect for maximum coupling efficiency. The source and sensor modules of each set are identical in construction; when the modules are placed facing one another, each infrared emitting diode has a photo-transistor directly opposite it. The FPA100 has ni...