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Introduction to Optical Transponder

Currently, more and more users choose to deploy DWDM networks on the basis of their existing networks, as the normal network can't afford enough capacity for their daily use. Considering that there may be some confusion for designing the DWDM networks, this paper will mainly introduce the basic knowledge of DWDM technology and analyze the...

EDFA amplifier is the most common optical amplifier, used for boosting optical signals in optical applications, especially the DWDM systems. It is the key amplification device deployed in the optical system to enhance the signal power, so that the optical transmission distance can be greatly extended. Undoubtedly, the EDFA amplifier is an...

Through years of persistent endeavor, experts have already published 40Gbps and 100Gbps solutions to address the need for higher bandwidth, which have been gradually used for bandwidth-hungry applications. In spite of this, the trend for higher bandwidth seems never ending and now 500Gbps solution for Metro network has been also put forward for...

When deploying a long-distance CATV network, we always worry about the link performance due to the fiber attenuation that may make the CATV signals weaker and weaker as the distance of the CATV link increases. How to deal with it? Here offers the EDFA amplifier as an ideal solution that utilizes both laser and fiber technology to amplify signals....

As the need for high capacity increases so fast, the WDM (wave division multiplexing) technology meets with great favor in today's optical network that can be mainly divided into CWDM (coarse wave division multiplexing) and DWDM (dense wave division multiplexing) technology. Although the CWDM cannot transmit the signals so long as that of DWDM, it...

Nowadays, more and more data centers utilize the WDM technology to gain bigger capacity for various applications, such as, 10G LAN, SONET/SDH, Fiber Channel, etc. Through this method, we can not only reduce the multiple fiber use, carry the signals through only one fiber, but also expand our network capacity. Since there are such benefits from WDM...

As the optical network develops fast, today's network needs much higher capacity than ever before, for carrying the large amount of data. Under this trend, the DWDM technology is come up with that can greatly expand the network capacity in long haul transmission. For those capacity-hungry applications, building a DWDM network is undoubtedly an...

CWDM, also referred to as coarse wavelength division multiplexing, is a kind of WDM technology that uses different wavelengths to multiplex two or more optical signals and carry them together via a single optical fiber, aiming at enhancing the network performance. Instead of putting more fibers to carry larger data volume, CWDM technology enables...

When choosing fiber module, you may usually hear the description like Tx (transmit) power and Rx (receive) power for a fiber module. Do you know what do these two phrases stand for? If we want to choose a proper kind of fiber module, do we have high requirements on its Tx power and Rx power? In fact, these two...