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Although all service providers are interested in IP over DWDM technology, they are not ready to deploy it yet. The debate continued this year at MWC and OFC. Dr. Oscar Gonzalez de Dios of Telefonica introduced the deployment progress of IP over DWDM in the speech of OFC conference. Although this technology has been commercialized for more than 10 years, it has not been widely adopted in telecommunications networks. This approach works well for point-to-point links and DCI networks, but telecom networks have a long list of concerns about it. The introduction of the 400ZR/ZR+ module has shortened this list, but there are still two key issues to be resolved: During OFC, Cisco disclosed that there are now more than 40 service providers who are deploying IP over DWDM , but they are all smaller companies. Simple networks can indeed use IP over DWDM, but complex optical networks operated by large telecom service providers are unlikely to deploy this solution on a large scale.   Google's T

OXC, the full name is optical cross-connect. Like ROADM, OXC is also an optical transmission device that can exchange optical signals between different optical paths. The concept of OXC actually existed as early as around 2000. In a sense, ROADM is a special implementation of OXC, and OXC includes ROADM. From the perspective of traditional architecture, OXC is composed of optical cross-connect matrix, input interface, output interface, management control unit and other modules. The optical cross-connect matrix is the core of OXC. The so-called matrix is actually a "box" with any internal ports interconnected in pairs. We will explain with the architecture of Huawei's OXC equipment. The OXC equipment is mainly composed of optical circuit boards, optical backplanes and optical tributary boards. Generally speaking, each slot of the circuit board corresponds to one direction. After the optical signal enters, it is "disassembled" into N wavelength signals through  WS

A three-port filter for a specific wavelength of CWDM whose wavelength channel consists of two lenses and a TFF matched to that specific wavelength. The reflection port of each filter is connected to the common port of the next filter, and the filters are connected through optical fiber connectors, which is a CWDM multiplexer . The principle of CCWDM is to use the input lens to focus the optical signals with wavelengths λ 1, λ 2... λ n on the input fiber onto the first filter; the optical signal with wavelength λ 1 passes through the first filter and is coupled to the optical fiber via the first output lens. In the first output fiber, the optical signal with wavelength λ 1 is separated; the remaining optical signals are reflected from the first glass slide to the next glass slide for optical signal separation; and so on until all signals are separated. The coupling between wavelength channels is realized in the form of straight rays taking a zigzag route. HTF has achieved mass producti

With the introduction of 400G optical modules, the interconnection of data centers is also gradually developing towards 800G Ethernet. The recent OFC 2020 conference in San Diego focused on 800G Ethernet, 800G technology and fiber jumpers for 800G networks, making 800G Ethernet another hot spot after 400G networks. However, 800G Ethernet is still being tested and perfected, and its large-scale deployment is still a long way off. 800G Ethernet and Optical module  standard Compared with 200G and 400G Ethernet, 800G Ethernet is a brand new technology. At present, several working groups have proposed specifications for 800G Ethernet. These specifications will be described in detail below. 1. The 800GBase-R will revert to 400G Ethernet technology for maximum cost savings Currently, the IEEE (Institute of Electrical and Electronics Engineers) does not have a standard for 800G Ethernet, but the 25G Ethernet Alliance (now known as the Ethernet Technology Alliance (ETC)) established the 800GBas

The world is accelerating the construction progress of 5G network, and the N×25Gbit/s WDM technology applied to 5G prequel has become the preferred solution for the prequel network. Considering cost, power consumption, performance, reliability and other factors, it is mainly divided into four kinds of multiplexing technologies: coarse, medium, fine and dense. A few days ago,   HTF   has achieved a large number of   CWDM , DWDM wave separator shipment, performance fully meet the operator standard requirements. Domestic 5G phase III construction will start soon, and overseas 5G construction will speed up.   HTF   will bring competitive wave separator series products to help 5G construction to land. The semi-active scheme focuses more on the functional characteristics such as maintenance and management, and the added OAM function of semi-active equipment drives the demand growth of TAP-PD.  HTF  has been deeply engaged in this kind of products for nearly 20 years, and has great advantage

Due to the need for network operators to transmit a large amount of data and communication traffic between different cities, regions, and even countries, equipment capable of achieving long-distance transmission is required. The long-distance transmission capability of DWDM technology allows operators to conduct data transmission over ultra-long distances. DWDM technology can transmit several dozen or even hundreds of wavelengths over a single optical fiber, enabling operators to simultaneously engage in various services, including data, voice, and video. By enhancing the efficiency of network resource utilization, DWDM technology possesses significant scalability and upgradeability. With the continuous development of communication technology, the number of channels in DWDM will continue to increase. DWDM technology can also be applied to connect various data centers. Data centers play an increasingly important role in internet services, and Data Center Interconnect (DCI) is a critica

By deploying a DWDM network, you will gain the following benefits: High Bandwidth and Capacity : DWDM technology achieves higher bandwidth and capacity by multiplexing multiple wavelengths of signals on a single optical fiber compared to conventional devices. In the backdrop of the ever-growing demands of the internet and communication, the high capacity becomes especially critical, especially in domains like high-definition video, cloud computing, and the Internet of Things. Long-Distance Transmission : DWDM technology employs wavelengths with minimal signal loss in the optical fiber transmission process. When paired with Transponders/EDFAs, it can even transmit signals over thousands of kilometers. This attribute is especially important for connecting remote cities, spanning international borders, and linking data centers across continents. The extensive long-distance transmission capability of DWDM greatly extends the reach of data communication, effectively facilitating seamless

Wavelength division multiplexing (WDM), including CWDM (coarse wavelength division multiplexing) and DWDM (dense wavelength division multiplexing), etc. It refers to the coupling of multiple signals of different wavelengths on a single fiber for simultaneous transmission. It has multiplexer and de-multiplexer. The multiplexer (MUX) combines multiple signal wavelengths in a single fiber for transmission at the transmitter side; the de-multiplexer (DEMUX) separates multiple wavelength signals transmitted in a single fiber at the receiver side. The main purpose of WDM is to increase the available bandwidth of the fiber, which can be expanded by WDM without the need to lay more fibers. What is the difference between CWDM and DWDM? 1.  Different wavelength intervals CWDM: wavelength interval ≥20nm, total 18 bands  of 1 2 70 nm ~1610nm with 20nm interval, DWDM: wavelength interval <10nm, usually using 1528nm~1565nm band with wavelength interval of 200GHz (1.6nm), 100GHz (0.8nm) or 50GHz

The working principle of DWDM technology is as follows: When signals are received, different signals are modulated onto their respective wavelengths, with each wavelength corresponding to an independent channel. After modulation is complete, these signals are combined into a single optical fiber at the transmitting end, forming a multi-wavelength optical signal. When this multi-wavelength optical signal is transmitted through the optical fiber to the receiving end, it undergoes wavelength demultiplexing, being separated into different wavelengths. The demultiplexed signals are then demodulated, converting the optical signal into an electrical signal and extracting the original data streams. Finally, the data streams from each channel are restored to their original form and delivered to the target device.

With the continuous evolution of the Internet and digital communication, coupled with the growing demand for bandwidth, DWDM technology has become an indispensable element. By constructing DWDM networks, we can achieve the transmission of different wavelength signals within the same optical fiber, with the ability to cover ultra-long distances ranging from hundreds to thousands of kilometers. DWDM networks , characterized by their outstanding ultra-long distance transmission performance and the capability to transmit multiple wavelength signals within a single optical fiber, have become a crucial component in the realms of the Internet and communication. What is DWDM Technology? Dense Wavelength Division Multiplexing (DWDM) is an optical transmission technology that achieves high bandwidth and long-distance data transmission by simultaneously transmitting multiple different wavelengths of signals over a single optical fiber. The wavelength bands of DWDM are typically divided into the C

DWDM, simply put, multiplexes optical signals of different wavelengths into the same optical fiber for transmission. DWDM technology is one of the basic technologies widely used in modern optical communication networks. It can improve the speed, capacity and reliability of optical communication. So in what areas is it specifically applied? This article will take you through the application scenarios of the DWDM transmission system. DWDM technology is mainly used in three major areas: broadband services, mobile services, and dedicated line network services. Three diagrams are used below to show where the DWDM transmission system is in these application fields and what role it plays. 1.Application scenarios of DWDM/OTN transmission system-broadband business 2. Application scenarios of DWDM/OTN transmission system - mobile services 3.Application scenarios of DWDM/OTN transmission system-dedicated line network business HTF's independently developed DWDM/OTN Optical Transmission Platfo

  According to the latest market research report, the  Big Data Transmission  Market of Indonesia is expected to experience significant growth by the year 2024. This positive growth forecast is due to several factors, including the increasing adoption of big data solutions and the growing number of companies that are implementing big data strategies to bolster their business processes.   One of the biggest drivers behind the growth of the  Big Data Transmission  Market of Indonesia is the country's rapidly expanding digital economy. As more businesses move online and more consumers embrace digital channels for shopping, communication, and entertainment, the volume of data produced in Indonesia is growing at an unprecedented rate. This trend is creating a massive demand for effective data transmission solutions that can securely and efficiently transfer large amounts of data.   Another factor contributing to the growth of the Big Data Transmission Market of Indonesia is the governme

The main function of OLP optical protection board is to assist the wave division system to complete the optical line 1 + 3 protection and optical wavelength 1 + 3 protection, which can monitor the main and standby routing optical signal status in real time. Once the optical signal interruption or performance deterioration occurs, it can automatically change safely in the main and standby routes to ensure the rapid recovery of the system; OLP technology is to complete the routing switching operation in the optical layer. Optical layer protection has the incomparable advantages of upper business protection, which is the best solution for users with non-blocking communication. Parameters