Microring resonator-based all-optical parallel pseudo random binary sequence generator for rate multiplication

Abstract

In this paper, we design an all-optical Pseudo Random Binary Sequence (PRBS) generator in parallel configuration for operating rate multiplication purposes. The sequential circuit comprises of several clocked D flip-flops, XOR gates and multiplexers implemented using microring resonator (MRR)-based switches. The proposed design is demonstrated and validated through simulations for 500 Gb/s and 400 Gb/s rate doubling and quadrupling, respectively, of a 5-bit degree PRBS. The MRR critical operating parameters are also optimized against performance metrics through numerical investigation.

Design and analysis of all-optical carry lookahead adder using microring resonator in Z-domain

“…E Q -T A R G E T ; t e m p : i n t r a l i n k -; e 0 0 6 ; 1 1 4 ; 3 0 3 If there is a deviation in the path length from their nominal values, the delay of a path may differ with respect to the unit delay. In such cases, Z −1 is replaced by e −jϕ , where 22 Unit delay Z −1 in exponential form is written as follows: 28…”

“…MRR has desirable characteristics, such as a high-quality factor, rapid switching, small size, increased bandwidth, low power consumption, simplicity in fabrication, etc. 21,22 The manuscript is organized as follows: after briefing the existing work of CLA and AO switches in Secs. 1 and 2, the operation of AO switches based on MRR and quantitatively analyzed MRR in the Z-domain are discussed; Sec.…”

“…Implementing an AO CLA utilizing MRRs alone is proposed in the current study for the first time. MRR has desirable characteristics, such as a high-quality factor, rapid switching, small size, increased bandwidth, low power consumption, simplicity in fabrication, etc 21 , 22 …”

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

“…Using different light polarization states, the gates show the three types of logic states. 12 The use of linear optics in a novel design for an all-optical NOR gate has just been documented in the scientific literature. 13 Even people still seek to SOA for all-optical logic gate design despite the prevalence of other platforms for constructing such gates.…”

“…A single microring resonator has been used by researchers to make high‐speed, low‐power all‐optical ternary logic switches. Using different light polarization states, the gates show the three types of logic states 12 . The use of linear optics in a novel design for an all‐optical NOR gate has just been documented in the scientific literature 13 .…”