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

Basic knowledge of DWDM ·WDM—multiplexing multi-light carriers carrying different information to one fiber to transmit (1510/1310 wavelength systems were used earlier)·DWDM (Dense Wavelength Division Multiplexing) in 1550 nm window employs more wavelengths for wavelength division multiplexing (8,

CWDM technology utilizes optical division multiplexer to multiplex optical signals with different wavelengths to single fiber for transmission. In the receiving terminal of the link, through optical division demultiplexer, composite signals in the fiber are demultiplexed to the signals with differen

For the need of improvement of network transmission systems, and network transmission ways of cost savings, time and effort, the coarse wavelength division multiplexer/demultiplexer (CWDM MUX/DEMUX) is undoubtedly is a cost-effective solution.Brief Introduction to CWDM MUX/DEMUXThe coarse wavelength

IntroductionWavelength division multiplexing (WDM) technology is usually divided into coarse wavelength division multiplexing (CWDM) technology and dense wavelength division multiplexing (DWDM), widely used in a variety of optical communication network. Among them, DWDM system channel density is lar

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

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 /

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

1. Cable failureFiber optical cable interruption leads to equipment without light, or cable damage causes excessive light attenuation. This kind of failure has a large impact, which can easily lead to no access to a large number of users.When such a failure occurs, the number and distribution of the