Simulation of optical triode based on PT symmetric structure under electro-optic modulation

2021 ◽  
Author(s):  
Jia-Chen Liu ◽  
Qian-Xiao Fang ◽  
Yu Wu ◽  
Zheng-Ya Xia ◽  
Yun-Tuan Fang
Keyword(s):  
Communication Systems ◽  
Optical Signal ◽  
Electrical Signal ◽  
Electronic Components ◽  
Optical Components ◽  
Symmetric Structure ◽  
Integrated Devices ◽  
Electro Optic ◽  
Bias Electric Field ◽  
Optical Communication Systems

In modern microwave and optical communication systems, it is urgent to develop optical components with the same performance as electronic components. In this paper, a PT-symmetric structure including electro-optical medium is designed to construct optical triode. It is found that the structure has a pole effect of amplification under certain parameters. The frequency of the incident wave at the pole is taken as the carrier frequency, and the electrical signal is modulated into an optical signal. By setting the bias electric field, the modulated optical signal can be amplified in phase and out phase, and even by doubling frequency, and a new optical triode model is obtained. The designed model will play an important role in the design of optical integrated devices.

scholarly journals Silicon photonics for high data rate applications -INVITED

2020 ◽  
Vol 238 ◽  
pp. 01005
Author(s):  
David J. Thomson ◽  
Weiwei Zhang ◽  
Ke Li ◽  
Kapil Debnath ◽  
Shenghao Liu ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
High Speed ◽  
High Performance ◽  
High Efficiency ◽  
Electrical Signal ◽  
Electronic Components ◽  
High Data ◽  
Electro Optic ◽  
Optical Domain ◽  
Linear Modulation

The high speed conversion of signals between the optical and electrical domains is crucial for many key applications of silicon photonics. Electro-optic modulators integrated with electronic drive amplifiers are typically used to convert an electrical signal to the optical domain. Design of these individual elements is important to achieve high performance, however a true optimisation requires careful co-design of the photonic and electronic components considering the properties of each other. Here we present our recent results in this area together with a MOSCAP type modulator with the potential for high speed, high efficiency and highly linear modulation.

Design and Implementation of a Tunable Optical Delay System

2013 ◽  
Vol 718-720 ◽  
pp. 698-702
Author(s):  
Min Zhang ◽  
Peng Fu ◽  
Nan Xu ◽  
Jie Luo ◽  
Zhuo Liu ◽  
...  
Keyword(s):  
Optical Networks ◽  
Communication Systems ◽  
Optical Signal ◽  
Delay System ◽  
Measuring Instruments ◽  
Signal Delay ◽  
Design And Implementation ◽  
Optical Delay ◽  
Optical Communication Systems ◽  
Implementation Method

This paper presents the design and implementation of a tunable optical delay system, capable of calibrating the optical signal delay by optical measuring instruments. It is also able to measure the delay by optical communication systems, the laser linewidth, the maximum radius of passive optical networks (PONs) and so on. Structure and implementation method are detailed and results show that it is able to measure the optical signal delay within an error of only +/-0.33ns.

scholarly journals A Survey on Optical Technologies for IoT, Smart Industry, and Smart Infrastructures

2019 ◽  
Vol 8 (3) ◽  
pp. 47 ◽  
Author(s):  
Slavisa Aleksic
Keyword(s):  
Communication Systems ◽  
Optical Components ◽  
Smart Systems ◽  
Optical Communication Systems ◽  
Smart Industry ◽  
The One ◽  
Data Acquisition And Processing ◽  
The Internet Of Things ◽  
Heterogeneous Transmission ◽  
Very High

In the Internet of Things (IoT), a huge number of sensors, actuators and other equipment for data acquisition and processing will be interconnected by means of an omnipresent communication network able to efficiently support heterogeneous transmission technologies and applications. On the one hand, advanced optical communication systems, which already play a significant role in modern networks, are currently evolving to meet very high requirements of modern applications. On the other hand, there are already many ways to utilize optical components and effects for building precise, efficient, and reliable sensors. Thus, optical technologies have the potential to greatly help in realizing future smart infrastructures and systems. This paper gives an overview of currently available and emerging optical technologies for sensing and communication applications and reviews their possible application in the context of the IoT for realizing smart systems and infrastructures.

Probing of nonlinear impairments in long range optical transmission systems

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Farman Ali ◽  
Muhammad Shakeel ◽  
Asar Ali ◽  
Wajid Shah ◽  
Muhammad Salman Qamar ◽  
...  
Keyword(s):  
Communication Networks ◽  
Optical Communication ◽  
Communication Systems ◽  
Nonlinear Effects ◽  
Effective Area ◽  
Optical Signal ◽  
Linear Dispersion ◽  
Optical Communication Systems ◽  
The Impact ◽  
Nonlinear Impairments

Abstract Optical communication systems represent the backbone of modern long-haul communication networks. Nonlinear impairments such as the Kerr effect pose threat and deteriorate transmission in long-haul optical communication systems. At high launch powers, nonlinear effects become more important and their compensation is entailed to improve the transmission performance. In this paper, one of the major nonlinear effects of four waves mixing (FWM) is addressed using a theoretical model and validated through simulation in Optisystem. Two mechanisms with and without dispersion variation are investigated. The impact of FWM is investigated in terms of various values of launch power. The transmission performances of the proposed model are evaluated on the basis of bit error rate, optical signal to noise ratio, and quality factor using key parameters of effective area, nonlinear refractive index, nonlinear dispersion, and linear dispersion.

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