All Fiber-Optic Neural Network Using Coupled SOA Based Ring Lasers  

Oleh:

Hill, M. T. ; Waardt, H. de ; Dorren, H. J. S. ; Frietman, E. E. E. ; Khoe, Giok-Djan

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: IEEE Transactions on Neural Networks vol. 13 no. 6 (2002), page 1504-1513.
Topik: fibre optic; fiber - optic; neural network; SOA; ring lasers

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: II36.7A Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

An all - optical neural network is presented that is based on coupled lasers. Each laser in the network lases at a distinct wavelength, representing one neuron. The network status is determined by the wavelength of the network's light output. Inputs to the network are in the optical power domain. The nonlinear threshold function required for neural - network operation is achieved optically by interaction between the lasers. The behaviour of the coupled lasers is explained by a simple laser model developed in the paper. In particular, the winner take all (WTA) neural - network behaviour of a system of many lasers is described. An experimental system is implemented using single mode fiber optic components at wavelengths near 1550 nm. A number of functions are implemented to demonstrate the practicality of the new network. The neural network is particularly robust against input wavelength variations.

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