An all-optical method of developing data communication system with error detection circuit

Exploiting Polydopamine Nanospheres to DNA Computing: A Simple, Enzyme-Free and G-Quadruplex-Free DNA Parity Generator/Checker for Error Detection during Data Transmission

“…It was also operated in a simpler, faster, and more efficient way, which presented apparent advantages over former conventional and molecular pG/pC systems. 20,[23][24][25][26][27][28]42 Negative Logic Conversion for the Odd pG/pC. According to the parity generating/checking principle, the pG/pCs were divided into two kinds, even and odd ones, and the odd pG/pC possesses the identical function to the even one.…”

All-optical binary logic unit (BLU) using frequency encoded data

“…We can use commercially available pig-tailed SOA (Kamelian, OPA Series) employing a tensile strained bulk InGaAsP/InP for developing XOR logic gate, and bulk JDS-Uniphase SOA for polarization switches and remaining all other logic gates of the BLU [12,15,17]. In each of the SOA1 and SOA2, total power of the pump beams requires to rotate the state of polarization of the probe beam is at least 1.3 mW.…”

“…Therefore, the TE and TM components of the probe beam propagate with unequal velocities, and they recombine at the port-2 with different phase shifts and different optical gains. In the presence of pump beam of power about 0.4 mW or more, due to phase change of 180°between TE and TM modes of the beam, they interfere destructively, and consequently no beam appear at the at port-2, and obviously maximum power will develop at port-1 [13][14][15][16][17][18]. If A (z, t) represents the electric field of the propagating probe beam at a distance 'z' within the active medium of the SOA along its axis of propagation at 't', then on the basis of time rate equation model of SOA [15], then power and phase associate with each mode of propagating field can be represented by the Eqs.…”

A Novel Method of Designing an all Optical 3-Bit Asynchronous Counter

“…4, respectively. The values of some useful parameters used for SOA simulation are: Γ TE = 0.2 , Γ TM = 0.14, α TE = α TM = 5, ξ TE = 7.0x10 -9 ps -1 , ξ TM = 6.5x10 -9 ps -1 , vg TE =vg TM = 100 μm /ps ,F=0.5,N0 = 10 8 , L = 800 μm, T1 =500 ps, αint TE/TM = 0.27 ps -1 , e = 1.6 x 10 -19 C .The optical power of the probe beam used here is 0.03 mW [19]. Fig.…”