What is DWDM Transceiver and application of it ?
2019-08-31
DWDM is a laser technology that aims to increase the bandwidth of existing fiber backbone networks by using a combination of optical fibers to transmit a set of light wavelengths.Rather, the technique multiplies the tight spectral spacing of a single optical carrier over a single fiber for performance purposes.Effects such as minimal dispersion or attenuation can be achieved by reducing the total number of optical fibers required with limited information transmission capacity.
DWDM technology USES multiple wavelengths as carrier and single-mode fiber, because the bandwidth of single-mode fiber has the characteristics of low loss, which can realize the purpose of simultaneous transmission of each carrier channel in the fiber.Compared with the traditional single-channel system, dense wdm-dwdm not only greatly improves the communication capacity of the network system, but also makes full use of the bandwidth of optical fiber.
At the same time,Its application prospects are very bright, because it has the advantages of simple capacity expansion and reliable performance, and can directly access to a variety of services.In the analog carrier communication system, frequency division multiplexing is often used to improve the transmission capacity of the system and make full use of the bandwidth resources of the cable.In other words, the receiving end filters out the signals of each channel by using various carrier frequency band pass filters, under the condition of simultaneously transmitting signals of several channels in the same cable.
Similarly, frequency division multiplexing (FDM) is often used to improve the transmission capacity of optical fiber communication systems.In fact, this method is very effective in optical communication systems.There is a difference, compared to the frequency division multiplexing in the analog carrier communication system, in the optical communication system, it USES light wave as the carrier of the signal, according to each
The wavelength, or frequency, of a light wave in a channel, and the low loss window of the optical fiber is divided into several channels, so as to realize the multiplex transmission of optical signals in a single optical fiber.
DWDM, as the last part of the man structure, is intended to connect optical exchanges.A device that is in most cases the same device.It is often thought of as a scaled-down version of DWDM long-distance transport devices.It is typically configured with more than 40 backup wavelength channels.In general, in order to improve the wavelength utilization of the equipment, the equipment will use 4-1 oc-192 circuit card to achieve the purpose.Such devices are also connected to optical switches, often for the purpose of interoffice "click-through" structures.The overall structure of DWDM man is composed of a three-part connection structure and a management software platform.
DWDM multiplexers, such as Oni System's ONLINE series and Akara's OUSP 2000, can be divided into multiple channels, each of which supports different protocols and applications.For these protocols and applications, there are technologies such as fiber channel, gigabit Ethernet, and synchronous fiber network.This technology enables businesses or service providers to spread the high cost of deploying and maintaining fiber infrastructure across multiple locations, applications, and users.DWDM can deploy new bandwidth and service tasks over existing fiber optics in days or weeks.By contrast, it takes a long time to deploy a billable "light fiber" service.
DWDM is suitable for large-capacity long-distance trunk network, long-distance network, as well as the location of the core node of metropolitan area network with super capacity.There are two wave synthesizers in DWDM system. One is applied to the starting point of the optical fiber segment of the line, which can realize the multiplexing of the main optical channel and optical monitoring channel (wavelength of 1550nm or 1310nm).One is for optical multiplexing terminals that can multiplex working channels in 1550nm Windows.
DWDM can be applied at four levels. First, DWDM SFP optical module can amplify other optical transmission systems like DWDM network, gigabit Ethernet, fiber channel, fast Ethernet, and so on.Second, DWDM SFP+ optical module can work on 10G optical cable and meet the requirements of 10gbase-zr /ZW.Third, DWDM XFP optical module, X2 optical module and MXENPAK optical module are often used in 10G Ethernet, 10G fiber channel, SONET (synchronous fiber network), 10G fiber channel and other transmission sites.Fourth, the DWDM optical module mentioned above is also applicable to switches, switch interfaces, router/server interfaces and other places.
Currently based on DWDM because of the service on the last kilometer issue, the provider can only serve areas of many companies, such as some dense metro areas.Currently based on DWDM because of the service on the last kilometer issue, the provider can only serve areas of many companies, such as some dense metro areas.It is up to the user to manage how fibre channels, Escon connections and storage devices relate to DWDM devices.
At its most basic level, fiber providers install and maintain point-to-point, unprotected, or protected DWDM connections for customers.Users need to make careful comparisons when buying, because today's services vary widely in price mechanism, geographical distribution, and support levels.From optical fiber to communication network, people's means of communication have changed greatly.
With the increasing demand of network transmission speed, optical fiber communication has developed to a new height.In the aspect of network technology, transmission technology has entered into the practical stage, and has begun to be commercialized.Seeking a comprehensive solution that is transparent, reconfigurable and scalable, and laying a solid foundation for future communications networks, many countries have begun experimenting with all existing and soon-to-be-laid optical networks.
Optical communication technology has made great progress in the field of optics and optical fiber.
DWDM will become an important link in the construction of communication network.In the development of our future network, we should put DWDM technology in an important position.
DWDM technology USES multiple wavelengths as carrier and single-mode fiber, because the bandwidth of single-mode fiber has the characteristics of low loss, which can realize the purpose of simultaneous transmission of each carrier channel in the fiber.Compared with the traditional single-channel system, dense wdm-dwdm not only greatly improves the communication capacity of the network system, but also makes full use of the bandwidth of optical fiber.
At the same time,Its application prospects are very bright, because it has the advantages of simple capacity expansion and reliable performance, and can directly access to a variety of services.In the analog carrier communication system, frequency division multiplexing is often used to improve the transmission capacity of the system and make full use of the bandwidth resources of the cable.In other words, the receiving end filters out the signals of each channel by using various carrier frequency band pass filters, under the condition of simultaneously transmitting signals of several channels in the same cable.
Similarly, frequency division multiplexing (FDM) is often used to improve the transmission capacity of optical fiber communication systems.In fact, this method is very effective in optical communication systems.There is a difference, compared to the frequency division multiplexing in the analog carrier communication system, in the optical communication system, it USES light wave as the carrier of the signal, according to each
The wavelength, or frequency, of a light wave in a channel, and the low loss window of the optical fiber is divided into several channels, so as to realize the multiplex transmission of optical signals in a single optical fiber.
DWDM, as the last part of the man structure, is intended to connect optical exchanges.A device that is in most cases the same device.It is often thought of as a scaled-down version of DWDM long-distance transport devices.It is typically configured with more than 40 backup wavelength channels.In general, in order to improve the wavelength utilization of the equipment, the equipment will use 4-1 oc-192 circuit card to achieve the purpose.Such devices are also connected to optical switches, often for the purpose of interoffice "click-through" structures.The overall structure of DWDM man is composed of a three-part connection structure and a management software platform.
DWDM multiplexers, such as Oni System's ONLINE series and Akara's OUSP 2000, can be divided into multiple channels, each of which supports different protocols and applications.For these protocols and applications, there are technologies such as fiber channel, gigabit Ethernet, and synchronous fiber network.This technology enables businesses or service providers to spread the high cost of deploying and maintaining fiber infrastructure across multiple locations, applications, and users.DWDM can deploy new bandwidth and service tasks over existing fiber optics in days or weeks.By contrast, it takes a long time to deploy a billable "light fiber" service.
DWDM is suitable for large-capacity long-distance trunk network, long-distance network, as well as the location of the core node of metropolitan area network with super capacity.There are two wave synthesizers in DWDM system. One is applied to the starting point of the optical fiber segment of the line, which can realize the multiplexing of the main optical channel and optical monitoring channel (wavelength of 1550nm or 1310nm).One is for optical multiplexing terminals that can multiplex working channels in 1550nm Windows.
DWDM can be applied at four levels. First, DWDM SFP optical module can amplify other optical transmission systems like DWDM network, gigabit Ethernet, fiber channel, fast Ethernet, and so on.Second, DWDM SFP+ optical module can work on 10G optical cable and meet the requirements of 10gbase-zr /ZW.Third, DWDM XFP optical module, X2 optical module and MXENPAK optical module are often used in 10G Ethernet, 10G fiber channel, SONET (synchronous fiber network), 10G fiber channel and other transmission sites.Fourth, the DWDM optical module mentioned above is also applicable to switches, switch interfaces, router/server interfaces and other places.
Currently based on DWDM because of the service on the last kilometer issue, the provider can only serve areas of many companies, such as some dense metro areas.Currently based on DWDM because of the service on the last kilometer issue, the provider can only serve areas of many companies, such as some dense metro areas.It is up to the user to manage how fibre channels, Escon connections and storage devices relate to DWDM devices.
At its most basic level, fiber providers install and maintain point-to-point, unprotected, or protected DWDM connections for customers.Users need to make careful comparisons when buying, because today's services vary widely in price mechanism, geographical distribution, and support levels.From optical fiber to communication network, people's means of communication have changed greatly.
With the increasing demand of network transmission speed, optical fiber communication has developed to a new height.In the aspect of network technology, transmission technology has entered into the practical stage, and has begun to be commercialized.Seeking a comprehensive solution that is transparent, reconfigurable and scalable, and laying a solid foundation for future communications networks, many countries have begun experimenting with all existing and soon-to-be-laid optical networks.
Optical communication technology has made great progress in the field of optics and optical fiber.
DWDM will become an important link in the construction of communication network.In the development of our future network, we should put DWDM technology in an important position.
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