Scaling properties of active-grating amplified surface emitting lasers

Author

Carlson, N.W. ; Amantea, R.

Author_Institution

David Sarnoff Res. Center, Princeton, NJ, USA

Volume

29

Issue

11

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

2780

Lastpage

2783

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.248936

Filename

248936