title: Ultra-broadband two-pump optical parametric amplifier in tellurite waveguides with engineered dispersion.
abstract: The capacity of communication networks may be significantly improved by simply enhancing the optical amplifier bandwidth. This paper presents a numerical investigation of an ultra-broadband, low-ripple, two-pump-optical parametric amplifier (2P-OPA) that employs a tellurite glass buried-channel type nano-waveguide as nonlinear medium. The nano-waveguide was designed as a 25-cm-long Archimedean spiral that occupies a footprint of only ~2.5 mm2, with a ~0.7 μm2effective cross section. Its zero-dispersion wavelength is ~1550 nm, the nonlinear coefficient is ~3000 W-1km-1,and the attenuation coefficient is ~0.5 dB/m (1100 to 1900 nm). Simulations suggest a 2P-OPA based on such waveguide will be able to amplify 243 QPSK input channels modulated at 56 Gbps over 102 nm bandwidth, over metropolitan area network scales.
authors.forename: Jorge D
authors.initials: JD
authors.lastname: Marconi
authors.forename: Marcelo L F
authors.initials: ML
authors.lastname: Abbade
authors.forename: Claudia M
authors.initials: CM
authors.lastname: Serpa-Imbett
authors.forename: Eric A M
authors.initials: EA
authors.lastname: Fagotto