Optical signal to noise ratio improvement through unbalanced noise beating in phase-sensitive parametric amplifiers
Artikel i vetenskaplig tidskrift, 2014

We investigate the beating of signal and idler waves, which have imbalanced signal to noise ratios, in a phase-sensitive parametric amplifier. Imbalanced signal to noise ratios are achieved in two ways; first by imbalanced noise loading; second by varying idler to signal input power ratio. In the case of imbalanced noise loading the phase-sensitive amplifier improved the signal to noise ratio from 3 to 6 dB, and in the case of varying idler to signal input power ratio, the signal to noise ratio improved from 3 to in excess of 20 dB.

Författare

Rohit Malik

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Ales Kumpera

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Samuel L I Olsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Optics Express

1094-4087 (ISSN)

Vol. 22 10477-10486

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1364/oe.22.010477