All optical quantizing encoder based on nonlinear polarization rotation effects in semiconductor optical amplifiers (SOA)

Abstract

The invention discloses an all optical quantizing encoder based on nonlinear polarization rotation effects in semiconductor optical amplifiers (SOA), which belongs to the technical field of optical communication networks and mainly comprises a power allocation unit and a quantizing encoding unit based on the nonlinear polarization rotation effects in the SOAs, wherein the quantizing encoding unit mainly comprises an initial quantizing encoding module and a gain dynamic compensation module; the action of the initial quantizing encoding module is to carry out initial quantizing encoding on sampled optical pulses; and the action of the gain dynamic compensation module is to carry out gain dynamic compensation on the pulses on which the initial quantizing encoding is finished. The all optical quantizing encoder based on the nonlinear polarization rotation effects in the SOAs is capable of solving the problems that the quantizing encoder based on cross gain modulation in the SOAs is not capable of realizing high-resolution encoding and uniform quantization, and the number of the required SOAs is excessive, thereby, the all optical quantizing encoder based on the nonlinear polarization rotation effects in the SOAs has the advantages that the resolution is high, the quantization is uniform, and the number of the required SOAs is less, and simultaneously, the quantizing encoder also has the advantages of low energy consumption and convenience in photon integration and is a key technology of realizing all optical networks in future.

Description

technical field [0001] The invention relates to an all-optical quantization encoder, in particular to an all-optical quantization encoder based on the nonlinear polarization rotation effect in a semiconductor optical amplifier, which is used for an ultra-fast all-optical analog-to-digital converter (ADC), and belongs to Optical communication network technology field. Background technique [0002] The analog-to-digital converter is an important device that converts analog signals into digital signals. It is a front-end device that realizes signal transmission in high-speed communication networks, and realizes signal storage and processing. It has been widely used in radar signal processing, high-definition video and real-time signal monitoring. Due to limited response speed and sampling time jitter, it is difficult to achieve high-speed and high-resolution analog-to-digital conversion with traditional electrical domain analog-to-digital converters. The all-optical analog-to...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to propose an all-optical quantization encoder based on nonlinear polarization rotation in a semiconductor optical amplifier. This all-optical quantization encoder can overcome the inability to realize high-resolution encoding, uniform Quantization and the problem of too many required SOAs. This type of quantization encoding method has the advantages of high resolution, uniform quantization, and a small number of required SOAs. At the same time, the quantization encoder also has low energy consumption and is convenient for photon integration. It is the key technology to realize all-optical network in the future

Images