Optical Switching for a Nonlinear Directional Coupler Including the Effects of Two Photon Absorption

1992 ◽  
Author(s):  
M. J. Potasek ◽  
J. M. Fang
Keyword(s):  
Optical Switching ◽  
Directional Coupler ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Nonlinear Directional Coupler

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.

Two-Photon Absorption-Free Ultrafast Optical Switching in Carbon-Rich SixC1−xMicroring

2017 ◽  
Vol 2 (9) ◽  
pp. 1700095 ◽  
Author(s):  
Bo-Ji Huang ◽  
Chung-Lun Wu ◽  
Yung-Hsiang Lin ◽  
Huai-Yung Wang ◽  
Cheng-Ting Tsai ◽  
...  
Keyword(s):  
Optical Switching ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Ultrafast Optical

Role of two‐photon absorption in ultrafast semiconductor optical switching devices

1990 ◽  
Vol 56 (14) ◽  
pp. 1305-1307 ◽  
Author(s):  
J. S. Aitchison ◽  
M. K. Oliver ◽  
E. Kapon ◽  
E. Colas ◽  
P. W. E. Smith
Keyword(s):  
Optical Switching ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Optical Switching Devices ◽  
Switching Devices

scholarly journals All-optical-switching demonstration using two-photon absorption and the Zeno effect

2013 ◽  
Vol 87 (2) ◽  
Author(s):  
S. M. Hendrickson ◽  
C. N. Weiler ◽  
R. M. Camacho ◽  
P. T. Rakich ◽  
A. I. Young ◽  
...  
Keyword(s):  
Optical Switching ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Zeno Effect ◽  
All Optical ◽  
All Optical Switching

Two-photon absorption as a limitation to all-optical switching

1989 ◽  
Vol 14 (20) ◽  
pp. 1140 ◽  
Author(s):  
Victor Mizrahi ◽  
M. A. Saifi ◽  
M. J. Andrejco ◽  
K. W. DeLong ◽  
G. I. Stegeman
Keyword(s):  
Optical Switching ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
All Optical ◽  
All Optical Switching

DOUBLY RESONANT TWO-PHOTON ABSORPTION CROSS-SECTIONS: IT DOES NOT GET ANY BIGGER THAN THIS

2004 ◽  
Vol 13 (03n04) ◽  
pp. 461-466 ◽  
Author(s):  
MARK G. KUZYK
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Nonlinear Interaction ◽  
Optical Switching ◽  
Electron System ◽  
Photon Absorption ◽  
Nonlinear Susceptibility ◽  
Absorption Cross ◽  
Two Photon Absorption ◽  
Two Photon

Ever since researchers first probed materials with light, a natural question they have asked pertains to the strength of this interaction. Can materials be made to more strongly absorb light at certain wavelengths, thereby yielding vibrant colors? Can the nonlinear interaction between two beams be used to make an optical switching device? How efficiently can we convert the frequency of light through a nonlinear interaction? All of these questions, in effect, are the same. Equivalently, the question can be phrased as, "how large can we make the linear or the nonlinear susceptibility?" In this paper, we apply sum rules to calculate the maximum limit of the doubly resonant two-photon absorption cross-section. We find that even for a single electron system, the cross-section can exceed δ=105 GM .

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