Open AccessEfficient self-phase modulation in low loss, high index doped silica glass integrated waveguides
Author(s) -
D. Duchesne,
Marcello Ferrera,
Luca Razzari,
Roberto Morandotti,
Brent E. Little,
Sai T. Chu,
David Moss
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.001865
Subject(s) - materials science , optics , self phase modulation , refractive index , modulation (music) , nonlinear optics , waveguide , nonlinear system , absorption (acoustics) , phase modulation , phase (matter) , doping , cross phase modulation , optoelectronics , phase noise , physics , laser , quantum mechanics , acoustics
We demonstrate efficient self phase modulation, as well as negligible nonlinear absorption, in low loss (<0.06 dB/cm), high index silica glass-based waveguides. Using approximately 1 ps pulses near 1560 nm we achieve a 1.5pi nonlinear phase shift in an integrated 45 cm long spiral waveguide with <60 W of peak input power, corresponding to a large nonlinearity (gamma) of 220 W(-1)km(-1). Further, we observe negligible nonlinear absorption for input intensities > 25 GW/cm(2). The high nonlinearity and low linear and nonlinear losses of these waveguides make them promising for nonlinear all-optical signal processing applications.