Title :
9B5 - Linewidth measurements of CW gallium arsenide lasers at 77°K
Author :
Ahearn, W.E. ; Crowe, J.W.
Author_Institution :
IBM Watson Research Center, Yorktown, NY, USA
fDate :
9/1/1966 12:00:00 AM
Abstract :
Measurements have been made on the linewidths of several continuously excited gallium arsenide lasers operating at 77°K by using an optical system similar to that of a Michelson Intefferometer with a leg unbalance of 3000 feet. For CW GaAs lasers operating in a single mode, homodyne detection was used to determine the linewidth to within the system´s resolution of 150 kc/s. For various CW GaAs laser current levels and mode configurations, the system allowed a means of determining the bandwidth of the intensity noise by autocorrelation.
Keywords :
Chemical lasers; Gallium arsenide; Laser beams; Laser excitation; Laser modes; Laser noise; Laser theory; Optical interferometry; Optical pumping; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1966.1074067
