{"id":5850,"date":"2017-09-04T13:00:31","date_gmt":"2017-09-04T13:00:31","guid":{"rendered":"https:\/\/www.tarluz.com\/?p=5850\/"},"modified":"2017-09-04T13:24:23","modified_gmt":"2017-09-04T13:24:23","slug":"terms-terminology-know-ftth-pon-network","status":"publish","type":"post","link":"https:\/\/www.tarluz.com\/ar\/ftth\/terms-terminology-know-ftth-pon-network\/","title":{"rendered":"Terms and Terminologies you should know about FTTH PON Network"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Attenuation<\/td>\nreduction of the signal magnitude or loss, caused by absorption and scattering Values are normally expressed in decibels (dB) <\/td>\n<\/tr>\n
Attenuator<\/td>\na passive device for reducing the amplitude of a signal without distorting the waveform <\/td>\n<\/tr>\n
Bidirectional<\/td>\na device, which operates in both directions<\/td>\n<\/tr>\n
Broadband Device<\/td>\noptical broadband devices cover a wide range of wavelengths<\/td>\n<\/tr>\n
Center Wavelength<\/td>\nthe nominal operating wavelength of an optical device<\/td>\n<\/tr>\n
Coupler<\/td>\na bidirectional device with three or more fiber ends, combining the signals of two or more input ports into one output port Also referred to as splitter<\/td>\n<\/tr>\n
Decibel (dB)<\/td>\na logarithmic unit of measurement for calculating the attenuation of an optical device or an optical system A change of -3 dB equates to the halving of the optical power<\/td>\n<\/tr>\n
Demultiplexer<\/td>\na device that separates two or more multiplexed signals into its original single signals; the inverse of a multiplexer <\/td>\n<\/tr>\n
Directivity<\/td>\nthe amount of undesired optical signals observed at a given input port of a device Also referred as near-end crosstalk (NEXT)<\/td>\n<\/tr>\n
Dual Window<\/td>\na passive optical component that is optimised to operate at two different center wavelengths For example at 1310 nm and 1550 nm <\/td>\n<\/tr>\n
Excess Loss<\/td>\nattenuation or loss of the optical component itself, without including any attenuation effects of the device due to signal splitting <\/td>\n<\/tr>\n
Fused Biconical Tapering (FBT)<\/td>\na manufacturing process for passive optical network components It consist of twisting bare fibers together, stretching and then fusing the fibers together<\/td>\n<\/tr>\n
Insertion Loss (IL)<\/td>\na sum of excess loss, splitting loss and loss caused by other optical effects Total loss experienced by signal traversing the device<\/td>\n<\/tr>\n
Isolation<\/td>\nthe amount of undesired optical signals observed at a given output port of a device Also referred as far-end crosstalk (FEXT) <\/td>\n<\/tr>\n
Multiplexer<\/td>\na device that combines two or more signals into a single output; the inverse of a demultiplexer<\/td>\n<\/tr>\n
Operating Wavelength<\/td>\nthe wavelength, or wavelength range, for which a passive optical component is optimised for operating<\/td>\n<\/tr>\n
Planar Lightwave Circuit (PLC)<\/td>\na manufacturing process for optical passive network components Its main components is a waveguide array that is induced in a silica chip by using a photolithographic masking process<\/td>\n<\/tr>\n
Polarization Depen- dent Loss (PDL)<\/td>\nchanges in attenuation caused by the state of polarisation (SOP) This optical effect results in a deviation between the maximum and minimum loss on an optical device<\/td>\n<\/tr>\n
Return Loss (RL)<\/td>\nthe ratio of optical power reflected back along the path of transmission from a connector or any other optical device Values are normally expressed in decibels (dB) <\/td>\n<\/tr>\n
Single Window<\/td>\na passive optical component that is optimised to operate at a single specified center wavelength For example at 1310 nm or 1550 nm <\/td>\n<\/tr>\n
Splitter<\/td>\na bidirectional device with three or more fiber ends, which divides the signal from one input port into two or more output ports Also referred to as coupler<\/td>\n<\/tr>\n
Splitting Ratio<\/td>\nthe percentage of optical power transferred to an output port of an optical device, with respect to the total power at the input to the device <\/td>\n<\/tr>\n
Uniformity<\/td>\nthe maximum deviation of insertion loss between the different ports on a device within the operating wavelength range <\/td>\n<\/tr>\n
Wavelength Division Multiplexing (WDM)<\/td>\na technique of transmitting various signals at different wavelengths through the same fiber <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Attenuation reduction of the signal magnitude or loss, caused by absorption and scattering Values are normally expressed in decibels (dB) Attenuator a passive device for reducing the amplitude of a signal without distorting the waveform Bidirectional a device, which operates in both directions Broadband Device optical broadband devices cover a wide range of wavelengths Center […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[25],"tags":[1095,1093,27,1094,203,1092,46,42,255,1097,1096,193],"class_list":["post-5850","post","type-post","status-publish","format-standard","hentry","category-ftth","tag-dual-window","tag-fbt","tag-ftth","tag-fused-biconical-tapering","tag-insertion-loss","tag-pdl","tag-plc","tag-pon","tag-return-loss","tag-single-window","tag-triple-window","tag-wdm"],"yoast_head":"\nTerms and Terminologies you should know about FTTH PON Network - 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