Gain enhancement in cascaded fiber parametric amplifier with quasi-phase matching: Theory and experiment

Citation
J. Kim et al., Gain enhancement in cascaded fiber parametric amplifier with quasi-phase matching: Theory and experiment, J LIGHTW T, 19(2), 2001, pp. 247-251
Citations number
11
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Optics & Acoustics
Journal title
JOURNAL OF LIGHTWAVE TECHNOLOGY
ISSN journal
0733-8724 → ACNP
Volume
19
Issue
2
Year of publication
2001
Pages
247 - 251
Database
ISI
SICI code
0733-8724(200102)19:2<247:GEICFP>2.0.ZU;2-2
Abstract
We report a novel gain enhancement scheme for fiber-optic parametric amplif iers utilizing cascaded amplification and quasi-phase matching (QPM), The t heory and method of QPM for four-wave mixing (FWM) are developed for the fi rst time to our knowledge. In experimental implementations of the theory, w e achieve >12 dB gain improvement in a three-stage dispersion-shifted (DS) fiber parametric amplifier. A 16-dB overall gain is obtained with 11 nm sep aration between zero-dispersion wavelength and pump wavelength. The experim ental results show good agreement with theory and simulations. The influenc e of QPM on spectral characteristics of parametric gain is investigated wit h numerical simulations.