Measurement of very short optical delays in multimode fibers

1975 ◽  
Vol 27 (4) ◽  
pp. 237-239 ◽  
Author(s):  
B. Crosignani ◽  
B. Daino ◽  
P. Di Porto
Keyword(s):  
Multimode Fibers ◽  
Optical Delays

scholarly journals Image reconstruction through a multimode fiber with a simple neural network architecture

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Changyan Zhu ◽  
Eng Aik Chan ◽  
You Wang ◽  
Weina Peng ◽  
Ruixiang Guo ◽  
...  
Keyword(s):  
Neural Network ◽  
Image Reconstruction ◽  
Network Architecture ◽  
Neural Network Architecture ◽  
Training Time ◽  
Modal Dispersion ◽  
Multimode Fibers ◽  
Speckle Patterns ◽  
Hidden Layer ◽  
Simple Neural Network

AbstractMultimode fibers (MMFs) have the potential to carry complex images for endoscopy and related applications, but decoding the complex speckle patterns produced by mode-mixing and modal dispersion in MMFs is a serious challenge. Several groups have recently shown that convolutional neural networks (CNNs) can be trained to perform high-fidelity MMF image reconstruction. We find that a considerably simpler neural network architecture, the single hidden layer dense neural network, performs at least as well as previously-used CNNs in terms of image reconstruction fidelity, and is superior in terms of training time and computing resources required. The trained networks can accurately reconstruct MMF images collected over a week after the cessation of the training set, with the dense network performing as well as the CNN over the entire period.

Bit-rate-variable and order-switchable optical multiplexing of high-speed pseudorandom bit sequence using optical delays

2010 ◽  
Vol 35 (18) ◽  
pp. 3042 ◽  
Author(s):  
Xiaoxia Wu ◽  
Jian Wang ◽  
Omer F. Yilmaz ◽  
Scott R. Nuccio ◽  
Antonella Bogoni ◽  
...  
Keyword(s):  
High Speed ◽  
Bit Rate ◽  
Optical Multiplexing ◽  
Optical Delays

scholarly journals Principal modes in multimode fibers: exploring the crossover from weak to strong mode coupling

2017 ◽  
Vol 25 (3) ◽  
pp. 2709 ◽  
Author(s):  
Wen Xiong ◽  
Philipp Ambichl ◽  
Yaron Bromberg ◽  
Brandon Redding ◽  
Stefan Rotter ◽  
...  
Keyword(s):  
Mode Coupling ◽  
Multimode Fibers ◽  
Strong Mode

scholarly journals Large tunable optical delays via self-phase modulation and dispersion

2006 ◽  
Vol 14 (25) ◽  
pp. 12022 ◽  
Author(s):  
Yoshitomo Okawachi ◽  
Jay E. Sharping ◽  
Chris Xu ◽  
Alexander L. Gaeta
Keyword(s):  
Phase Modulation ◽  
Self Phase Modulation ◽  
Optical Delays
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