26 Tbit s−1 line-rate super-channel transmission utilizing all-optical fast Fourier transform processing

Spiral attractor created by vector solitons

“…As a result, a new chaotic attractor has been reproduced theoretically for parameters close to the experimental ones. By unveiling the origin of new types of unique states of polarisation evolving on very complex trajectories, our theoretical and experimental studies pave the way to new techniques in metrology, 14 high-resolution femtosecond spectroscopy, 15 high-speed and secure fibre optic communications, 16,21 nanooptics (trapping and manipulation of nanoparticle and atoms [17][18][19] ) and spintronics (vector control of magnetisation 20 ). With further advances in the development of fast polarimetry in the context of speed (.1 GHz) and the number of stored samples (.10 M samples), the mode-locked laser with polarisation controller will become a demonstrator of the complex dynamics including dynamic chaos like a generic Chua circuit.…”

“…[4][5][6][7][8][9][10][11][12][13] The stability of VSs at the different time scales from femtosecond to microseconds is an important issue to be addressed for increased resolution in metrology, 14 spectroscopy 15 and suppressed phase noise in high speed fibre optic communication. 16 In addition, there is considerable interest in achieving high flexibility in the generation and control of dynamic SOPs in the context of trapping and manipulation of atoms and nanoparticles, 17-19 control of magnetisation 20 and secure communications. 21 The stability and evolution of VSs at a time interval from a few to thousands of cavity round trips is defined by asymptotic states (attractors) which the laser SOP approaches at a long time scale, viz.…”

All-Optical Signal Processing for High Spectral Efficiency (SE) Optical Communication

“…The reconstructed signal appears in series at the output of the circuit. Note that padding by seven zeros is necessary between successive bits at each input, so that the transform coefficients of one input parallel word do not overrun those of the next word at the output [9], [33], [34]. The zero padding is the optical-domain equivalent of the up-sampling that is part of a digital IWPD.…”

Implementation of 1-Bit Random Access Memory Cell in All-Optical Domain with Non-linear Material

“…Last few years have witnessed an enhanced weight in optical communication [3][4] and computing [5] due to some important advancement, namely, the development of laser, optical fiber and novel materials that exhibit high nonlinearities [1,[5][6][7][8][9][10][11][12]. These developments of optics offer tremendous scope to overcome the obstacle to implement various arithmetic [2,[7][8], logic [9][10][11][12][13][14][18][19][20], algebraic [15] and image operations [16] in all-optical domain successfully.…”

“…Also the scheme has capacity of cascading. These circuits are key elements for the implementation of a high-speed, all-optical data processing device, which has the potential to outperform its electronic equivalent and constitute a possible new product for next generation computation [1,5] and communication [3][4] to scale their capacity to the traffic demand.…”