SFP Series forty-sixth Week News Abstract 1
Week News Abstract For SFP Series in 10GTEK
The abstract is mainly about the optical communication related products,including: FTTH,GPON,EPON,SFPPLC,PTN,ODN,Optical module,Optical devices,optical communications,Optical transceiver module,Etc.
Optical equipment terminology
IDF: Intermediate Distribution Frame, sub-patch panel MDF: Main Distribution Frame, the main distribution frame.OC: (Optical Carrier, optical carrier) is defined in the SONET specification transfer speed. OC defines transmission speed of optical devices, STS defines the transmission speed of electrical equipment.SC: Subscriber Connector (Optical Fiber Connector) User connector (fiber connector).ONENT: SONET (Synchronous Optical NETwork, synchronous optical network) is a high-speed data communication optical fiber transmission system. SONET communications by telephone companies and utility companies to deploy, its speed from 51Mb / s up to several gigabytes per second. SONET is a way to provide advanced network management and optical interface standards for smart system, which uses self-healing ring structure, if one line fails, it can be diverted transmission. SONET lines are widely used in low-speed T1 and T3 lines together. SONET broadband ISDN (B -ISDN) standard for the European standard is SDH.SONET corresponding time-division multiplexing (TDM) technology simultaneously transmit multiple data streams.ST: Straight Tip, straight-through fiber-optic connectors. TP: Tunst Pair, twisted pair.Cable Terminal Box: Cable terminal is mainly used for fixed, cable and over fiber pigtail of welding and resettlement and protection.Fiber boxes: the use of optical technology used to transmit digital and similar voice, video and data signals. Fiber Box can be mounted directly or table, especially suitable for high-speed optical fiber transmission.Fiber panel: optical fiber panel has a light transmission efficiency, inter-stage coupling loss, pass as clear and true, that has zero thickness in the optical characteristics of most typical application is the low light level image intensifier as the optical input and output window , to improve the quality of imaging devices play an important role in widely used in a variety of cathode ray tubes, camera tubes, CCD coupling need to send images and other instruments and devices.Optical fiber coupler: (Coupler) also known as splitter (Splitter), is the light signal from a carve up of fiber optical components, optical passive components are areas in telecommunications networks, cable networks, user-loop system regional network will be applied to, and breakdown of passive fiber optic connector components used in the largest item of fiber couplers can be divided into standard coupler (double branch, unit 1 × 2, which will power the light signal into two), star / tree coupler, and wavelength division multiplexer (WDM, if the wavelength is a high-density separation, that is, a narrow wavelength spacing is part of DWDM), production methods, there are sintered (Fuse), micro-optical (Micro Optics) , optical waveguide type (Wave Guide) three, and sintering method produced the majority (about 90%).Fiber distribution frame (cabinet): has the following features: a fixed cable, protection and grounding; fiber core and pigtail splicing; optical path of the deployment and to provide measurement port; redundant fiber and pigtail of storage management.Optical Fiber Distribution Box: particularly suitable for optical fiber access network termination point, a fiber optic cable wiring and welding capabilities, flexible core cable can transfer lines and storage.Jumper: that without a cable connector or cable to the unit, used in the patch panel on the transfer of various linkThread box: mainly used in aerial cable, buried cab
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History of optical fiber
Point to point fiber optic transmission system is connected via fiber optic cable. May include a fiber optic cable (sometimes called single fiber) or 2 fiber (sometimes called dual-fiber), or even more (48-fiber, fiber 1000)Humanity has never given up on finding the ideal optical transmission medium, and make unremitting efforts, it was discovered that a highly transparent quartz glass can pass light. This is called the optical glass fiber, referred to as "fiber." People use it to create a medical on the use of the endoscope, for example made of endoscopy, can be observed in about one meter away from the situation in vivo, but it's a great loss attenuation, can only send a short distance is the degree of light loss per kilometer of measured in decibels, until the 1960s, the best glass fiber attenuation loss per kilometer 1000 db is still more than 1000 db of loss per kilometer What does the concept of loss of 10 db per kilometer is the input signal transmission 1 km after only one-tenth, 20 db, says only one per cent, 30 db is the only one-thousandth of ... ... 1000 dB, meaning that only one per cent billion, is whether how communication can not be used, so there were many scientists and inventors that little hope of glass fiber communication, loss of confidence, to give up the study of optical fiber communications.The invention of lasers and fiber, so that people see the dawn of optical communications. In order to achieve optical fiber communication, but also the performance in laser and optical fiber on a major breakthrough, but a breakthrough in these areas encountered many difficulties, especially in fiber-optic loss of communication can be used to achieve the requirements of loss per kilometer from 1000 db to 20 db reduction seems unlikely that many scientists have lost the realization of optical fiber communication confidence in this case, was born in Shanghai by the British Chinese Kao (KCKao), Ph.D., through the British Standard Telecommunications Laboratories in numerous studies made on the basis of Lightwave made a bold idea, he believes that since the power can be transmitted along a metal wire, the light should be able to along the optical glass fiber transmission .1966 July, Kao's outlook on the optical transmission of great historical significance of the papers, the paper analyzes the main reason for the glass fiber loss of large, boldly predicted that, as long as to lower the glass fiber impurities, it is possible to make fiber loss per kilometer from 1000 db to reduce to 20 dB / km, making it possible for communication. this paper, scientists in many countries are encouraged to strengthen the efforts to achieve low-loss optical fiber of confidence.The world's first a low-loss silica fiber - 1970, Corning Glass Company's three U.S. researchers Marui Er, Caplong, Keck successfully made the transmission loss is only 20 dB per kilometer fiber. What is the concept of it and use it to compare the degree of transparency of glass, optical power loss through the glass half (equivalent to 3 dB) in length are: ordinary glass of a few centimeters, the most advanced optical glass, only a few meters per thousand through m loss of 20 dB up to 150 m length of fiber, which means that the degree of transparency is already higher than fiber glass than a few hundred times! at the time, made such a low loss optical fiber can be said to amazing move, which marks the optical fiber for communications with the realistic possibility.
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GigOptix TFPS Mach-Zehnder modulators earn Telcordia qualification
GigOptix, Inc. (OTCQB:GGOX) says its line of Mach-Zehnder modulators (MZM) that use its proprietary Thin Film Polymer on Silicon (TFPS) technology have successfully completed Telcordia GR-468 reliability qualifications. The company asserts that the TFPS modulators offer significant advantages over those based on the more common crystalline semiconductor technology. In particular, the TFPS technology enables lower drive voltage by 20% and extremely small footprint. The modulators also benefit from a simpler manufacturing processes and offer larger bandwidth than convention alternatives.The TFPS technology also enables integration of the modulator, laser, and driver in a small footprint module, GigOptix asserts.GigOptix offers several MZMs using the TFPS technology. These include the LX8401 (40G DPSK) MZM, which is available in production quantities. The LX8220 (40G DQPSK), LX8900 (100G Dual Drive NRZ), and LX8901 (100G DPSK) MZMs are available for sampling.
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The above information is edited by 10GTEK.
10GTEK is a professional manufacturer engaged in the R&D,manufacturing and marketing of Fiber Optic Transceivers and High Performance Cables Assemblies.
10GTEK provides customers with top quality and cost effective products. The prompt response and excellent customer support contribute to clients' full satisfaction.
10GTEK passed quality inspection,ISO9001:2008,and our products passed by CE?FCC and RoHS certificates
10GTEK now has developed a full series of optical transceivers including:SFP+,XFP,X2,XENPAK,GBIC,SFP,COPPER SFP,BiDi SFP,CWDM SFP,DWDM SFP etc,from 125Mbps low rate module to 10Gbps full line products.
10GTEK now has developed a full series HPC cable assemblies including SFP/SFP+ Cable,XFP Cable,QSFP Cable,MiniSAS Cables,ect.
10GTEK with the ability of R&D,can customize the products to fully meet customers' satisfaction.
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