Detectors/Receivers
Large Area InGaAs Photodiodes (PDF, 0.18 MB)
The JDSU ETX 500T, ETX 1000T, ETX 2000T5, and ETX 3000T5 series large area InGaAs PIN photodetectors have photosensitive areas with diameters of 500, 1000, 2000, and 3000 µm, respectively. These photodiodes offer high responsivity in the 800 to 1700 nm spectrum and are designed for use in instrumentation, sensing, and range-finding applications.
The detectors feature high sensitivity and linear spectral responsivity over a broad range of input powers. When operating in photovoltaic mode, a noise current density of 10 fA/Hz1/2 is typical at room temperature. When reverse-biased for greater bandwidth, a noise floor of 60fA/Hz1/2 at -5 V is typical. Linear spectral response results from the low series resistance of the photodiodes.
The ETX 500T and ETX 1000T series are optimal for the high speed, differential mode measurements common in precision optical power meters, optical fiber identifiers, and optical loss test sets.
The ETX 2000T5 and ETX 3000T5 series are optimal for instruments designed for use in the field. Their large diameters simplify coupling incident radiation in the photosensitive areas. These photodiodes are appropriate for measuring signals that vary over a wide dynamic range, and are common in local area networks and in high fan-out systems. They are available in standard and high shunt resistance versions.
The ETX 500T, ETX1000T, ETX 2000T5, and ETX 3000T5 photodiodes are all packaged in hermetically sealed TO cans.
Key Features
Applications
