Fiber Optical Communication

نوشته شده توسط : Katherine Wang Introduction to Optical Transponder Optical transponder is also referred to as WDM transponder, wavelength-converting transponder or OEO (Optical-Electrical-Optical) 3R (re-timing, re-shaping, and re-amplifying) converter, and the word “transponder” is named according to the combination between transmitter and responder. It is an important unit in WDM syst, ...ادامه مطلب

Whatrsquo;s CWDM Technology? 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. Instea, ...ادامه مطلب

As the optical network develops fast, todayrsquo;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 appli, ...ادامه مطلب

When choosing QSFP+ transceivers for designing 40G Etheet network, you may hear the descriptions like ldquo;Single-mode QSFP+rdquo;, ldquo;Multimode QSFP+rdquo;. Are you familiar with these modules? What do these words stand for? Whatrsquo;s the difference between these two QSFP+ modules? Which one should you choose to deploy your 40G Etheet network? And what should be noticed when using them? In fact, the words single-mode and multimode here mean the different types of optical fibers that QSFP+ transceivers work with. For instance, single-mode QSFP+ means that QSFP+ transceivers run through single-mode fibers (SMF), while multimode QSFP+ will work with multimode fibers (MMF). In this article, we will have a discussion about the differences between the two QSFP+ transceivers and introduce the notice when using them. Single-mode QSFP+ Overview Generally, single-mode QSFP+ transceivers mainly work in 1310nm wavelength, mostly applied for 40G long distances transmission, such as, 1km,, ...ادامه مطلب

With the continuously growing demand for higher capacity and bandwidth, the deployment of 40G Etheet network becomes much more necessary than ever before. As one of the key components to accomplish a whole 40G connection, QSFP+ transceiver, a compact, hot-pluggable module, is designed with four independent channels to transmit and receive 10G signals, supporting 4x10 Gbit/s data rates. This kind of module can be used both in 40G to 40G application where one QSFP+ transceiver will be connected to another QSFP+ transceiver and in 10G to 40G application where one QSFP+ transceiver will be connected to four SFP+ transceivers. Do you also want to upgrade your system from 10G to 40G Etheet network by using QSFP+ transceiver? The following will detailedly describe the step-by-step procedures for installing QSFP+ transceiver and attaching optical network cable to the transceiver, which will be helpful for you to achieve a fast, smooth and seamless 40G network deployment. QSFP+ Transceiver , ...ادامه مطلب

As the network develops fast, the form of the network is gradually migrated from wired connection to wireless connection, meeting the increasing needs of the network. Does the wireless connection perform better than the wired one? Are you still hesitating over which connection should be choose to deploy your network? In this paper, it will mainly study the basic information of the wired and wireless connection and find which one is better by comparing these two kinds of network connection, giving you the answer you may care about. Wired and Wireless Network Overview As their names imply, the wired network is deployed by using the network patch cable to connect all the devices in the wired network, while the wireless network utilizes radio waves and/or microwaves to sustain interaction channels linking computers, as shown in the following figure. Generally, both of the two forms of network have their own features, which will be introduced below. In a wired network, network patch cable , ...ادامه مطلب

Taking full advantages of low cost, high reliability, fast installation, easy maintenance and scalability, Etheet Network becomes a very popular and commonly used LAN technology that has been developed for over 40 years and gets mature day by day. Under its continuous advancement and improvement, the data transmission rate has been increased greatly which causes the emergence of 10G, 40G, 100G and even 120G Etheet Network. Among these kinds of Etheet Network, there is no doubt that 10G Etheet Network has become a commonplace for current network backbones, data centers, and server farms, supporting high-bandwidth, mission-critical applications. In this article, it will talk about why 10G Etheet Network is so popular and which transceiver is most suitable for establishing 10G Etheet Network. Why is 10G Etheet Network So Popular? It is well know that 10G Etheet Network is developed for the purpose of ensuring faster data transmission and better network performance. As Ethe,things you should know,things you should know podcast,things you should know about your girlfriend ...ادامه مطلب