METHOD AND DEVICE FOR EXCITING SELF-RESTRAINED AND SELF-HEATED METAL ATOM JUNCTION PULSING LASERS Russian patent published in 2005 - IPC

FIELD: quantum electronics.

SUBSTANCE: proposed method includes generation of one additional delay pulse with each drive pulse at certain delay between pulses and constant energy insertion in laser active element. Lasing power characteristics at stabilized parameters of plasma are controlled by momentum changes of additional pulse location relative to drive pulse. For lasing mode additional pulse is generated past main drive pulse and for lasing pulse suppression mode it is produced in advance of main drive pulse; in this case energy of additional pulse should be sufficient only for populating metastable laser levels of metal atoms. Pulse advance time and pulse delay time of additional pulse counted from origin of drive pulse should be lower than lifetime of metastable laser levels. Stabilization of plasma parameters is additionally corrected by varying advance time and delay time of additional pulse with respect to drive pulse. Device implementing this method has laser tube whose cathode and grounded anode are shorted out by inductance coil; resonator; two switches; two energy storage capacitors whose leads are integrated and connected to laser tube cathode; adjustable high-voltage power supply whose common lead is connected to grounded cathodes of switches; trigger pulse generator; two adjustable delay lines; two anode reactors; two pulse modulator drivers; nonadjustable delay line; electronic relay; controller.

EFFECT: enhanced speed of pulsed laser emission dose modulation accurate to one pulse obeying any preset law; reduced switching loss of device.

4 cl, 5 dwg