An optical fast frequency modulation code division multiple access communication system is proposed. In this system, an electrically controlled tunable optical filter (TOF) is used to encode the modulated broadband light source. The code depends on the function set to the controller. Two-dimensional code named functional code is also proposed based on a shifted sine function. The function defin...

Neural machine translation, which has an encoder-decoder framework, is considered to be a feasible way for future translation. Nevertheless, with the fusion of multiple languages and continuous emergence new words, most current neural translation systems based on von Neumann’s architecture have seen substantial increase in number devices decoder, resulting high-energy consumption rate. Here, mu...

In this paper, we discuss and analyze an optical code division multiple access for multiple user system. Media access control implementation has been considered. For fulfilling the huge need of bandwidth services, technology tends to move to optical networks and three major optical systems come into existence. Code division of the optical network is most used and real concept interacted with us...

Lightwave networks realized through code division multiple access techniques are extensively studied to determine their ultimate capabilities. Here, these concepts are extended to network implementation by introducing an optical code division multiplexing (OCDM) multihop strategy using optical coding. It is shown that this approach is effective in scaling up existing wavelength division multipl...

A new optical computing experimental system is presented. Designed based on tri-valued logic, the system is built as a photoelectric hybrid computer system which is much advantageous over its electronic counterparts. Say, the tri-valued logic of the system guarantees that it is more powerful in information processing than that of systems with binary logic. And the optical characteristic of the ...

We propose an end-to-end recurrent encoder-decoder based sequence learning approach for printed text Optical Character Recognition (OCR). In contrast to present day existing state-of-art OCR solution [Graves et al. (2006)] which uses CTC output layer, our approach makes minimalistic assumptions on the structure and length of the sequence. We use a two step encoder-decoder approach – (a) A recur...

Hsin-I Liu Vito Dai Avideh Zakhor Borivoje Nikolić University of California, Berkeley Department of Electrical Engineering and Computer Science Berkeley, California E-mail: [email protected] Abstract. Achieving the throughput of one wafer layer per minute with a direct-write maskless lithography system, using 22-nm pixels for 45-nm feature sizes, requires data rates of about 12 Tb/s. In ou...

We demonstrate the transmission of 6.4 Tbit/s OCDM/WDM (4 OCDM x 40 WDM x 40 Gbit/s) using only C-band wavelength region. A record of 1.6 bit/s/Hz spectrum efficiency is achieved by QPSK optical encoding/ decoding along with optical time-gating and optical thresholding in addition to polarization multiplexing. Introduction To meet the rapid increase of the demand for multi-terabit/s transmissio...