Optical signal to noise ratio improvement through unbalanced noise beating in phase-sensitive parametric amplifiers
Journal article, 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.

Author

Rohit Malik

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Ales Kumpera

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Samuel L I Olsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Optics Express

1094-4087 (ISSN)

Vol. 22 9 10477-10486

Phase-sensitive optical parametric amplifiers (PSOPA)

European Commission (FP7), 2012-03-01 -- 2017-02-28.

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1364/oe.22.010477

More information

Created

10/7/2017