In order to countermeasure increasingly serious threat from hostile laser in modern war, it is urgent to make research on laser warning technology and system, the ratio of signal to noise (SNR) is one of important performance parameters in laser warning receiver (LWR), which directly decides detection sensitivity and the ability of noise reduction.

Theoretical research on the application of Meslin interferometer in laser alarm;

Theoretical research on laser alarm and jamming using Brillouin enhanced Four-wave mixing;

Improvement of the directional detection algorithm of fiber-array laser warning receivers;

An adaptive method to improve the performance of laser warning equipment;

The accomplishment of wavelength detection in the laser warning based on FPGA;

We concern the synthesis warning technique;synthesis,integration,miniaturization and multilayer defence whole process countering technique.

An introduction to the role of laser warning on the battlefield is presented,with an overview of the principle,required specifications and classification of laser warning devices.