All-optical flip-flop by nonlinear coupling of microring and waveguide

A Study of Double Microring Resonator Behavior for 1.3 μm Optical Communication

“…The optical outputs of a ring resonator add/drop filter can be given by the equations ( 4) and (5). The equation ( 6) and (7) show the output of through port and drop port, which is input of the second add/drop device.…”

“…We have any research in many last years for design optical device and system such as a wide-FSR waveguide double-ring resonator for optical FDM transmission systems [1] and a microring resonator channel dropping filters [2] and secondorder filter response from parallel coupled glass microring resonators [3].A reflective properties of double-ring resonator system coupled to a waveguide and all-optical flip-flop composed [4][5], an ultra small, low-power, alloptical flip-flop memory on a silicon chip and waveguide [6][7]. In the last year, NPRG: Nanophotonic research group presented a DWDM of optical micro ring resonator double add/drop multiplexing for THz optical communication [8].…”

Switchable All-Optical Flip-Flop and Inverter Operations in Quantum Well Microring Laser

“…All-optical inverters and flip-flops are primary elements for signal processing, and they have been studied extensively. There have been studies on all-optical flipflops using optical bistability [1][2][3][4][5][6][7][8][9]. However, most flip-flop devices are not usable for cascaded layouts for all-optical signal processing because they are based on the spatial switching of light output.…”

Nonlinear model analysis of all-optical flip-flop and inverter operations of microring laser

“…An all-optical flip-flop and inverter are fundamental building blocks for future all-optical processing. So far, many studies on the optical flip-flop function based on optical bistabilities have been reported, such as master-slave bistability, 1) absorptive bistability, 2) dispersive bistability, [3][4][5] and mode competition bistability. 6) Most flip-flop devices are not suitable for the cascaded configuration of all-optical signal processing owing to the spatial switching of output ports using optical bistabilities.…”