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Enhanced Low-Capacitance InGaAs PIN Photodiodes for Optical Power Meter and Laser Spot Tracking Applications

InGaAs PIN Photodiodes
InGaAs PIN Photodiodes

Excelitas Technologies Corp has announced its enhanced product family of low-capacitance InGaAs PIN Photodiodes C30619GH-LC, C30641GH-LC, C30642GH-LC, and C30665GH-LC for commercial and military LiDAR, laser range finding, laser warning and laser spot tracking applications. These low-capacitance InGaAs PIN Photodiodes provide high quantum efficiency from 800 nm to 1700 nm and feature a special ultra-low capacitance of only half of the standard type capacitance, therefore exhibiting twice the 3 dB bandwidth, while maintaining the legacy high shunt resistance, low dark currents and high sensitivity, better than 1% non-linearity, and uniformity within 2% across the detector active area.

 

Moreover, the new Photodiodes features spectral response of 800 nm – 1700 nm which is well-suited to commonly available lasers in the 1300 nm – 1600 nm range and has Active area diameter from 0.5 mm to 5 mm. These devices are available in various, robust TO packages, additional TEC options and multi-element options.

 

Features

  • Ultra-low capacitance option

  • High responsivity at 1300 nm and 1550 nm

  • Active Area diameter from 0.5 mm to 5 mm

  • High linearity over large dynamic range

  • Available in various, robust TO packages

  • Customizations (e.g. TEC attachment) possible

  • RoHS compliant

 

Applications

  • Optical Power Meter

  • Fiber Optic Test Communication

  • Near-IR spectroscopy

  • Laser profiling stations

  • Instrumentation

  • LiDAR

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