All-optical soliton based universal logic NOR utilizing a single reflective semiconductor optical amplifier (RSOA)

Simulation of all‐optical NOR gate design with improved extinction ratio using semiconductor optical amplifier

“…5 An RSOA-based optical NOR gate architecture using soliton pulses, achieving extinction ratio (ER ∼ 14 dB), contrast ratio (∼15 dB), and Q value (∼90 dB) for future optical logic processors. 6 The NOR logic function is implemented by exploiting the cross-gain modulation (XGM) effect in SOAs. When two optical signals are input into an SOA, they interact with each other and with the SOA, resulting in a change in the gain and phase of both signals.…”

“…Data signals of the same wavelength can be converted into logic gates with excellent quality and logical correctness 5 . An RSOA‐based optical NOR gate architecture using soliton pulses, achieving extinction ratio (ER ∼ 14 dB), contrast ratio (∼15 dB), and Q value (∼90 dB) for future optical logic processors 6 . The NOR logic function is implemented by exploiting the cross‐gain modulation (XGM) effect in SOAs.…”

The azimuth manipulation of nonlocal photorefractive spatial solitons

“…Spatial optical solitons are the result of the nonlinear effect balancing the diffraction effect during the propagation of a beam. Spatial optical solitons have very important applications in all-optical networks [2], optical communication [3] and optical logic devices [4]. After Snyder and Mitchell [5] proposed the model of strongly nonlocal spatial optical solitons, the research on solitons in strongly nonlocal nonlinear media has been a hot topic in recent years.…”

Analysis of 2D Photonic crystal based all optical comparator

“…To build an optical device, different components such as optical gate, optical switch, memory etc are the requirement. In recent years, all optical logic gates and processors are designed using different switching mechanism such as, SOA, RSOA, TOAD, DCDSTOAD, ring resonator etc., with higher speed, smaller size and lower heat dissipation [2][3][4][5][6][7][8][9][10][11][12][13][14]. However, these devices have several disadvantages in terms of lower speed of operation, effect of spontaneous emission noise, higher foot print etc.…”