Jacques Arnaud

Europhysics Letters, 8 (4), pp. 345-349, 1989

ABSTRACT

The amplitude noise of a laser diode submitted to electronic feedback is evaluated using a new circuit theory. It is postulated that the electron-hole injection rate equals the photon generation rate at any time, and Nyquist-like noise sources are introduced. Previous results based on quantum mehcanics are recovered. It is found that the amplitude fluctuations of an optical beam in the coherent state can be squeezed below shot noise by feeding back the driving current of a laser amplifier.

LIEN VERS  L’ARTICLE : CIRCUIT THEORY OF AMPLITUDE NOISE FOR A LASER DIODE WITH ELECTRONIC FEEDBACK