High power nanosecond semiconductor laser

 

Principle of action

Laser radiation source is matrix of semiconductor injector lasers. Designed pumping current pulses source provide preliminary pump pulses with 50 ... 200 ns width and synchronized with it main pump pulses with 2 ... 4 ns width and 120A amplitude. It is possible to form powerful radiation impulse up to 100ns width.

 

Powerful semiconductor laser and envelopes
for long and short laser radiation pulses

Characteristics

Radiation wave length, nm	~900
Radiation pulse width, ns	2 ... 4
Radiation pulse peak power, not less than, W	500
Pulse frequency, Hz	0 ... 1000
Radiation pulse envelope estimates abmodality for 1000 estimates ensemble, %	2

 

Area of application

Investigations of laser radiation short pulses registration in laser location. Stroboscopic investigations: combined with high-sensitivity TV-camera such laser was used for movement dynamics and interaction parameters detection for solid parts in supersonic airflow.


 

References

• E.V. Buryi, A.E. Kosykh, "Spatial and temporal characteristics of the radiation emitted by an array of injection lasers generating nanosecond pulses", QUANTUM ELECTRON, 1995, 25 (8).
• Spatial Radiation Characteristics of ILPI-111 High-Power Semiconductor Laser Arrays // E.V.Buryi, A.E.Kosykh, M.N.Gruden', and V.D.Vetrov // Instruments and Experimental Techniques. Vol.39, No.4, 1996