• 1. Introduction Optical fiber sensing takes advantage of the physical properties of light as it passes through the optical fiber to detect changes in temperature, strain and other parameters. Optical fiber has wide working frequency band and large dynamic range, which is suitable for remote measurement and remote control. It is an excellent low loss transmission line. Under certain conditions, optical fiber is particularly easy to accept the measured or field loading, and is an excellent sensing element. The optical fiber is electrically neutral, small in size, light in weight, flexible, anti electromagnetic interference, and good in radiation resistance. It is especially suitable for use in flammable, explosive, space restricted, strong electromagnetic interference and othe...
    2022 - 09 - 29
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1. Introduction Optical fiber sensing takes advantage of the physical properties of light as it passes through the optical fiber to detect changes in temperature, strain and other parameters. Optical fiber has wide working frequency band and large dynamic range, which is suitable for remote measurement and remote control. It is an excellent low loss transmission line. Under certain conditions, optical fiber is particularly easy to accept the measured or field loading, and is an excellent sensing element. The optical fiber is electrically neutral, small in size, light in weight, ...
发布时间: 2022 - 09 - 29
Views:2
On September 16, the 19th China ASEAN Expo which lasts for 4 days held a grand opening ceremony in Nanning, Guangxi. Under the background of normalization of epidemic situation, all provinces, autonomous regions and cities have used the platform of China ASEAN Expo to inject strong impetus into the development of regional in-depth integration. The signed investment enterprises of this year's China ASEAN Expo involve 27 provinces, autonomous regions and cities, including Guangdong, Beijing, Shanghai, Hunan, Fujian, and the number of cooperative provinces is the highest in the...
发布时间: 2022 - 09 - 20
Views:5
LightCounting updates its forecast for sales of Ethernet and DWDM transceivers to Cloud companies.Investments by Cloud companies in mega datacenters and their supporting networking infrastructure have created a new and very dynamic segment in the optical components and modules market. This report from LightCounting offers an in-depth look at the development of this market in 2016-2021 and its prospects for growth in 2022-2027.Figure 1 summarizes the results of our analysis of sales of Ethernet and DWDM transceivers to the Top 5 US Cloud companies. We expect that total sales to the top 5 US Clo...
发布时间: 2022 - 08 - 25
Views:7
On the afternoon of October 17, Shanghai Metro Line 18 held a roll-off ceremony at CRRC Zhuji.  The project train is currently the highest level fully automatic driving train (GoA4) unattended during the whole process.Shanghai Metro Line 18 was initially equipped with 50 vehicles and adopted the national standard 6-section A-type car group, with a maximum speed of 80km/h.BEIHAI Communication provided on-board passenger information system for Shanghai Line 18 trains. For the GoA4 level, the passenger information system can adapt to a variety of scenarios for linkage, and it fully cons...
发布时间: 2019 - 12 - 26
Views:62
It is universally acknowledged that optical transceiver is widely used in the data center. That is because optical transceiver is playing a major role on data transmission. Therefore this article is written for make a brief introduction about data transmission. Descriptionthe Data transmission, also referred to as digital transmission or digital communications, is the movement of data over a communication medium from one device to another. In the form of a digital bitstream or a digitized analog signal, the process of data transmission is applied in different channels: point to point, poi...
发布时间: 2022 - 08 - 30
Views:10
As more fiber rollouts are announced across the U.S., the broadband industry is facing a looming problem: finding enough workers to actually deploy the tens of millions of new passings they’ve promised. Government statistics show the number of telecommunications workers has dropped drastically over the past decade and that figure isn’t expected to rebound anytime soon. But plug-and-play fiber installation technology could help alleviate the workforce crunch – at least to an extent.According to data from the U.S. Bureau of Labor Statistics (BLS), the number of telecommunications ...
发布时间: 2022 - 08 - 09
Views:5
What is inside an optical transceiver?Playing a big role on connecting different network devices to transmit and receive data, optical transceivers are very essential in the optical communication system. There is lots of information available to introduce their types, features and parameters, but we still know little about the internal elements. What is inside an optical transceiver? After viewing the assembly process and having conversations with experienced workers in the workshop, I am writing this article to answer this question.Brief to make a definition, the main elements insid...
发布时间: 2022 - 08 - 18
Views:7
There is a cause for optimism as the communications service providers (CSPs) enter their second decade of network transformation. That is the main finding of LightCounting's latest edition of its network transformation report entitled: Network Transformation Reaches a Pivotal Phase.On the surface, it is business as usual: CSPs are experiencing paltry growth and continue to search for new revenue opportunities. Yet under the surface, much is being done.Open RAN, a flagship network transformation project, encompasses all its key ingredients: disaggregation, virtualization, automation, a...
发布时间: 2022 - 08 - 05
Views:10
As the application of optical modules in optical communication becomes more and more extensive, the speed, packaging, power consumption and functions are all developing in the direction of high speed, small size, low power consumption and multi-function. When you search the SFP, you always see that 'DDM support'. So what is DDM?What does DDM mean?Now let's talk about the Digital Diagnostic Monitoring (DDM) function. Definition of DDMDDM (Digital Diagnostic Monitoring), formulated by the industry organization SFF Committee, works in accordance with the standard parameters ...
发布时间: 2022 - 08 - 10
Views:8
Date: September 7th-9th, 2022Venue: Shenzhen World Exhibition and Convention Center, China Organizer: Shenzhen UBM Herong Exhibition Co., Ltd.For more information: www.cioe/cn/en  China International Optoelectronic Exposition(CIOE), regarded as the largest and most influential optoelectronic exhibition in the world, is held annually in Shenzhen, China. Since 1999, it has successfully been held for 23 times, providing a platform for global optoelectronic professionals to meet business partners and learn about the latest trends in the industry. This world-renow...
发布时间: 2022 - 07 - 29
Views:14
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