Title :
Compensation of injection-laser excess noise by means of an external modulator
Author :
Guekos, G. ; Strutt, M.J.O.
Author_Institution :
Swiss Federal Institute of Technology, Department of Advanced Electrical Engineering, Zÿrich, Switzerland
Abstract :
An external modulation of a c.w. injection laser is described which allows a strong reduction of the excess noise of the laser beam. KDP was used as a modulator and the modulating voltage was proportional to the noise voltage across the load resistor of the photodetector of the beam opposite the modulated one.
Keywords :
modulation; noise; potassium compounds; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19700176
