Ultrafast femtosecond all-optical modulation through nondegenerate two-photon absorption in silicon-on-insulator waveguides

2008 ◽  
Vol 29 (5) ◽  
pp. 490-496 ◽  
Author(s):  
Jianwei Wu ◽  
Fengguang Luo
Keyword(s):  
Silicon On Insulator ◽  
Photon Absorption ◽  
Optical Modulation ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical

scholarly journals All-optical modulation using two-photon absorption in silicon core optical fibers

2011 ◽  
Vol 19 (20) ◽  
pp. 19078 ◽  
Author(s):  
P. Mehta ◽  
N. Healy ◽  
T. D. Day ◽  
J. R. Sparks ◽  
P. J. A. Sazio ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Photon Absorption ◽  
Optical Modulation ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical

Two-photon absorption and all-optical modulation in germanium-on-silicon waveguides for the mid-infrared

2015 ◽  
Vol 40 (10) ◽  
pp. 2213 ◽  
Author(s):  
Li Shen ◽  
Noel Healy ◽  
Colin J. Mitchell ◽  
Jordi Soler Penades ◽  
Milos Nedeljkovic ◽  
...  
Keyword(s):  
Photon Absorption ◽  
Optical Modulation ◽  
Mid Infrared ◽  
Silicon Waveguides ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical

Ultra-sensitive all-optical sampling at 1.5 [micro sign]m using waveguide two-photon absorption

1999 ◽  
Vol 35 (17) ◽  
pp. 1483 ◽  
Author(s):  
B.C. Thomsen ◽  
L.P. Barry ◽  
J.M. Dudley ◽  
J.D. Harvey
Keyword(s):  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Optical Sampling ◽  
All Optical

scholarly journals Ultrafast sub–30-fs all-optical switching based on gallium phosphide

2019 ◽  
Vol 5 (6) ◽  
pp. eaaw3262 ◽  
Author(s):  
Gustavo Grinblat ◽  
Michael P. Nielsen ◽  
Paul Dichtl ◽  
Yi Li ◽  
Rupert F. Oulton ◽  
...  
Keyword(s):  
Gallium Phosphide ◽  
Optical Switching ◽  
Near Infrared ◽  
Optical Nonlinearity ◽  
Photon Absorption ◽  
Linear Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical ◽  
All Optical Switching

Gallium phosphide (GaP) is one of the few available materials with strong optical nonlinearity and negligible losses in the visible (λ > 450 nm) and near-infrared regime. In this work, we demonstrate that a GaP film can generate sub–30-fs (full width at half maximum) transmission modulation of up to ~70% in the 600- to 1000-nm wavelength range. Nonlinear simulations using parameters measured by theZ-scan approach indicate that the transmission modulation arises from the optical Kerr effect and two-photon absorption. Because of the absence of linear absorption, no slower free-carrier contribution is detected. These findings place GaP as a promising ultrafast material for all-optical switching at modulation speeds of up to 20 THz.

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