Title :
Scaling properties of active-grating amplified surface emitting lasers
Author :
Carlson, N.W. ; Amantea, R.
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
11/1/1993 12:00:00 AM
Abstract :
The effect of amplified spontaneous emission on the coherent power output, brightness, and conversion efficiency of an active-grating amplified surface-emitting laser is analyzed. The optimum amplifier length for maximizing the brightness of the amplified coherent light is calculated. Although the coherent output power and brightness increase monotonically with length up to the optimum amplifier length, the conversion efficiency decreases monotonically. Beyond the optimum amplifier length, the coherent power output rapidly decreases to zero, as the amplified spontaneous emission intensity coupled into the amplifier mode increases and quenches the gain
Keywords :
brightness; diffraction gratings; distributed feedback lasers; laser theory; light coherence; semiconductor lasers; superradiance; DFB oscillator; active-grating amplified surface emitting lasers; amplified coherent light; amplified spontaneous emission; amplifier mode; brightness; coherent output power; coherent power output; conversion efficiency; gain; optimum amplifier length; scaling properties; Brightness; Gratings; Laser modes; Optical coupling; Power amplifiers; Power generation; Power lasers; Solids; Spontaneous emission; Surface emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
