Design of an all-optical NOT XOR gate based on cross-polarization modulation in a semiconductor optical amplifier

>A Stokes-based spectro-polarimetric analysis of the amplified spontaneous emission in a semiconductor optical amplifier

“…In so doing, many approaches have been proposed for the geometry of the guide or for the gain medium of the active layer, and have led, for instance, to bulk structures with a nearly square cross-section [4], strained multi-quantum-well structures [5], and, more recently, strained-bulk rectangular structures [6,7]. On the other hand, the possibility to exploit the polarisation sensitivity of SOAs has been widely investigated these last few years with the aim to optimise some optical functions [8] or to develop entirely new ones [9,10].…”

Implementation of an optical S-R flip-flop with polarization encoded light signal

“…The inherent parallelism and many other potential advantages of optical signal over electronic one are the reasons of using optics instead of electronics in data processing and computing. Many logic gates and data processors are already reported where different optical methods of encoding and decoding are used [1][2][3][4][5] . Among all the encoding techniques, the intensity based encoding was used widely.…”

A new scheme of implementing all-optical logic systems exploiting material nonlinearity and polarization based encoding technique

“…That is why a strong effort to implement data processors with optics as information carrying signal instead of electronic signal is supported in almost every corner of the world. Lots of proposals that are already put forward from logic, arithmetic, algebraic operations, data processing, computation and image processing are done by either optical signal alone or by opto-electronic mechanism [1][2][3] . To implement the Boolean logic operations with nonlinear material as a switching element the intensity level of the light signal is considered to indicate the logic states [4][5][6] .…”

“…the lateral separation between the two channels Y 1 Y Y and Y 2 Y Y ) becomes 0.3 mm for the value of 1 . 2 2 . This is a very large separation if we think for a micro-device.…”