New windows of opportunity for all-optical information processing: spatial solitons, EIT in microcavities, etc.

2005 ◽  
Author(s):  
Marin Solja-i ◽  
Elefterios Lidorikis ◽  
John D. Joannopoulos ◽  
Lene V. Hau ◽  
Mordechai Segev ◽  
...  
Keyword(s):  
Information Processing ◽  
Optical Information ◽  
Spatial Solitons ◽  
Optical Information Processing ◽  
Windows Of Opportunity ◽  
All Optical

scholarly journals Ultralow-power all-optical switching via a chiral Mach-Zehnder interferometer

2021 ◽  
Author(s):  
Yaping Ruan ◽  
Haodong Wu ◽  
Shi-Jun Ge ◽  
Lei Tang ◽  
Zhixiang Li ◽  
...  
Keyword(s):  
Information Processing ◽  
Optical Switching ◽  
Extinction Ratio ◽  
Zehnder Interferometer ◽  
Optical Information ◽  
Optical Information Processing ◽  
All Optical ◽  
Ultralow Power ◽  
All Optical Switching ◽  
Mach Zehnder Interferometer

Abstract All-optical switching increasingly plays an important role in optical information processing. However, simultaneous achievement of ultralow power consumption, broad bandwidth and high extinction ratio remains challenging. We experimentally demonstrate an ultralow-power all-optical switching by exploiting chiral interaction between light and optically active material in a Mach-Zehnder interferometer (MZI). We achieve switching extinction ratio of 20.0(3.8) and 14.7(2.8) dB with power cost of 66.1(0.7) and 1.3(0.1) fJ/bit, respectively. The bandwidth of our all-optical switching is about 4.2 GHz. Our theoretical analysis shows that the switching bandwidth can, in principle, exceed 110 GHz. Moreover, the switching has the potential to be operated at few-photon level. Our all-optical switching exploits a chiral MZI made of linear optical components. It excludes the requisite of high-quality optical cavity or large optical nonlinearity, thus greatly simplifying realization. Our scheme paves the way towards ultralow-power and ultrafast all-optical information processing.

scholarly journals Various functionalities Based on Semiconductor Optical Amplifer for All-Optical Information Processing

2002 ◽  
Vol 6 (4) ◽  
pp. 165-171 ◽  
Author(s):  
Seok Lee ◽  
Jae-Hun Kim ◽  
Young-Il Kim ◽  
Young-Tae Byun ◽  
Young-Min Jhon ◽  
...  
Keyword(s):  
Information Processing ◽  
Optical Information ◽  
Optical Information Processing ◽  
All Optical

Spatial Structures in Semiconductor Devices

1998 ◽  
Vol 07 (02) ◽  
pp. 255-270
Author(s):  
W. J. Firth ◽  
A. Lord
Keyword(s):  
Information Processing ◽  
Pattern Formation ◽  
Nonlinear Optics ◽  
Optical Bistability ◽  
Kerr Medium ◽  
Optical Information ◽  
Spatial Structures ◽  
Spatial Solitons ◽  
Optical Information Processing ◽  
Basic Physics

The basic physics of nonlinear optics in semiconductors is reviewed. Optical bistability due to increasing absorption and in a Kerr cavity is discussed, as are spatial solitons in a Kerr medium. These introduce recent research on spontaneous pattern formation and soliton-like structures in semiconductor cavity models. Applications to optical information processing are discussed, and simulations of a soliton array memory presented.

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