Laser Warning System

Ultra-Compact Laser Warning Sensor


An infantry soldier can use the device to take an evasive action in the event of getting exposed to hazardous laser raDIATion. The gadget with slight modification can be adapted to multi-sensor configuration to give it 360 azimuth coverage. One such application would be helmet-mounted system where three such sensors provide full 360 battlefield coverage. The gadget can also be integrated with an indigenously developed dedicated counting module to give a cumulative count of total number of laser threats received during a given time period; a feature extremely useful for training of weapon crew. The sensor is a totally indigenous effort, both in design and implementation.

 

                                              


DRDO has developed a compact sector-sensing laser warning sensor capable of giving warning against existence of a laser threat in the form of an audio beep as well as a visual display when exposed to raDIATion from typical existing and emerging battlefield solid-state lasers such as laser range finders, laser target designators and EOCM-class of lasers.
The sensor in the present form has a 150 wide field-of-view and an operational range in excess of 3 km. It is capable of providing information on the direction-of-arrival of the laser threat in three pre-defined sectors of 50 each within the overall field-of-view of 150. The gadget provides a direct reading display of the sector of arrival of the laser threat and is capable of discriminating between low PRF laser threats such as those from hand-held range finders and high PRF laser threats such as those from laser target designators.The compact size and lightweight, given its features and capabilities, has been made possible due to employment of most optimum and best suited design methodology and use of state-of-the-art components. The device, inclusive of an in-built battery pack, measures 160 mm 120 mm 90 mm and weighs 2 kg.
The sensor can be adapted to multi-sensor configuration to get full 360 azimuth coverage. The a smoke/aerosol screening system to build a laser-based protection system for tanks, and AFV. The sensor is aotally indigenous effort both in design and implementation.

 

Precision Direction Sensing Laser Warning Sensor


A precision direction sensing laser warning sensor, capable of giving audio and visual warning when the platform using this device is exposed to laser raDIATion in the wavelength band of 700-1100 nm, has been developed. The sensor has an operational range of 5 km and measures the direction-of-arrival of the laser threat with an accuracy of 3. It can distinguish between threats from low PRF laser range finders and those from high PRF laser target designators. The sensor in the present form has a field-of-view of 90 in azimuth and -5 to +25 in elevation. It is adaptable to multi-sensor configuration for 360 azimuth coverage. It operates from 12 V DC and can be configured to operate from power supply available on the platform.
Laser warning sensor configured as a multi-sensor arrangement and interfaced with a suitable smoke/aerosol screening system can be used effectively on platforms like main battle tanks, AFV, etc., to provide platform protection from laser-guided munitions. The development of this sensor is a totally indigenous effort, both in design and implementation.