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Laser Rangefinder Receiver

Photonics.com
May 2003
Analog Modules Inc.Request Info
 
The Model 758A High Performance Hybrid Eyesafe Laser Rangefinder receiver is optimized for ultrahigh sensitivity at 1550 nm, wide dynamic range, and greatly enhanced discrimination between multiple, closely spaced targets (patent pending). Pulsewidths from 1 to 40 ns are processed over six orders of magnitude dynamic range, and operation is possible from 1.0 to 1.6mm. The detector and critical pre-amplifier components are thermoelectrically cooled to minimize noise and provide maximum sensitivity and stability over temperature. A choice of different sizes of InGaAs APD detectors is available to achieve optimum performance in different rangefinders. Time programmed gain is triggered at T0 to eliminate false echoes at short ranges. A separate noise amplifier and detector help to maintain a constant false alarm rate. The output will drive impedances as low as 50 ohms and is compatible with a wide range of logic levels. The Model 758A is designed to meet the demanding requirements of military applications and offers the highest sensitivity of our family of rangefinder receivers. The small size (1.47" x 0.77" x 0.27") and PCB mounting make the Model 758A ideal for compact systems requiring high target fidelity and maximum sensitivity.


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