Noise performance of a frequency nondegenerate phase-sensitive amplifier with unequalized inputs
Artikel i vetenskaplig tidskrift, 2011

For the first time to our knowledge, the noise performance of a frequency nondegenerate phase-sensitive amplifier (PSA) with unequalized input powers has been experimentally characterized, based on a fiber-based parametric copier-PSA scheme. Two different noise-figure (NF) definitions-separate and combined NFs-are provided and compared. The results show that the separate NF of the weaker input wave is lower than that of the stronger wave due to the correlated-light nature. When considering the combined NF, the optimal noise performance (0 dB NF) is obtained only when the input powers are equal. Experiments agree well with the theoretical predictions. (C) 2011 Optical Society of America

amplification

parametric-amplifiers

field

quadrature

figure

Författare

Zhi Tong

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Carl Peter Lundström

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

M. Vasilyev

University of Texas at Arlington

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Optics Letters

0146-9592 (ISSN) 1539-4794 (eISSN)

Vol. 36 5 722-724

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1364/OL.36.000722