What is an optical switch?An optical switch is a device for opening or closing an optical circuit in a communication application that selectively switches the signal in an optical fiber or integrated optical circuit (IOC) from one circuit to another. In the network system, the optical switch plays a

When operating the WDM system, make sure to pay extra attention to the following parameters:1. wavelengthA wavelength is a distance traveled by a wave in a vibration period. The wavelength λm of the monochromatic light propagating in the optical fiber is represented by the following formula:λm = λ /

The topology used in WDM systems plays an important role in the utilization of WDM networks. Topology-related terms are:Network topology structureBy using multi-channel on fiber, WDM products make fiber-optic networks more efficient. The network is invisible but can be identified by fiber routing or

IntroductionWavelength Division Multiplexing (WDM) technology has brought unprecedented bandwidth capacity upgrade, improve bandwidth while also saving costs, as an ideal solution for the modern communication network. WDM has a wide range of terms, to find out is really a headache. Today, we will co

Nowadays, there are several kinds of multiplexing technology pushing the development of network speed based on fiber optical cabling. They are time division multiplexing(TDM) technology, space division multiplexing (SDM) technology and wavelength division multiplexing(WDM) technology. Time division

Definition:Dense Wavelength Division Multiplexing (DWDM) is an optical multiplexing technology used to increase bandwidth over existing fiber networks. DWDM works by combining and transmitting multiple signals simultaneously at different wavelengths on the same fiber. The technology creates multiple

Definition:WDM is based on a well-known concept called frequency division multiplexing or FDM. With this technology, the bandwidth of a channel (its frequency domain) is divided into multiple channels, and each channel occupies a part of the larger frequency spectrum. In WDM networks, each channel i

DefinitionIn fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. This technique enables bidirectional communications over one strand of fibe

Definition:Coarse wavelength division multiplexing (CWDM) is a method of combining multiple signals on laser beams at various wavelengths for transmission along fiber optic cables, such that the number of channels is fewer than in dense wavelength division multiplexing (DWDM) but more than in standa