What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)A、low optical powerB、high optical powerC、few optical channelsD、many optical channelsE、low chromatic dispersionF、high chromatic dispersionG、too much power differential in the optical channels
What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)
- A、low optical power
- B、high optical power
- C、few optical channels
- D、many optical channels
- E、low chromatic dispersion
- F、high chromatic dispersion
- G、too much power differential in the optical channels
相关考题：
including the use of low-loss low-nonlinearity(94)A.optical fiberB.trafficC.internetD.signaling
What are three factors that limit the maximum distance of an amplified optical signal without regeneration? ()(Choose three.) A. fiber dispersionB. signal attenuationC. transmitter powerD. amplifier bandwidthE. receiver dispersion tolerance
Which device creates an OEO conversion?() A. amplifierB. attenuatorC. regeneratorD. light emitterE. optical switchF. optical receiverG. fiber-optic cable
What three in combination are factors that can cause four－wave mixing in fiber－optic cables? ()(Choose three.) A. low optical powerB. high optical powerC. few optical channelsD. many optical channelsE. low chromatic dispersionF. high chromatic dispersionG. too much power differential in the optical channels
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications?() A. They are both regions of lowest loss.B. They are both regions of low reflections.C. They are both regions of low index of refraction.D. They are both regions of low chromatic dispersion.E. They are both regions of low Polarization Mode Dispersion (PMD).
What are three relevant design considerations when using the 15216 EDFA? ()(Choose three.) A. dispersionB. Optical SNRC. span attenuationD. four wave mixingE. receiver sensitivity
What are three factors that limit the maximum distance of an amplified optical signal without regeneration? （）(Choose three.)A、fiber dispersionB、signal attenuationC、transmitter powerD、amplifier bandwidthE、receiver dispersion tolerance
What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）A、 low optical poweB、 high optical powerC、 few optical channelsD、 many optical channelsE、 low chromatic dispersionF、 high chromatic dispersionG、 too much power differential in the optical channels
What are three factors that limit the maximum distance of an amplified optical signal without regeneration？ （）A、 fiber dispersionB、 signal attenuationC、 transmitter powerD、 amplifier bandwidthE、 receiver dispersion tolerance
In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A、the signal to noise of the current optical amplifierB、the signal to noise of the previous amplifier or sourceC、the signal to noise introduced by the optical multiplexerD、the accumulated noise to signal ratio of the optical channel
Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems? （）(Choose three.)A、PIN photodiodesB、zero-chirped lasersC、Erbium-doped fiber amplifiersD、dispersion compensating fiberE、dispersion compensating Bragg grating
A customer reports the optical drive is no longer responding. Which of the following questionsshould be asked FIRST?（）A、“Did you log in with an administrator account?”B、“Have you been to any inappropriate websites?”C、“What have you changed since the optical drive worked properly?”D、“What has changed since the optical drive worked properly?”
OWM的英文全称是（）A、Optical Wavelength MultiplexB、Optical wavelength MonitorC、Optical wavelength MemoryD、All are right
What two descriptions best define DWDM？ （）A、 a WDM system that is compatible with EDFA technologyB、 an optical technology for transmitting up to 16 channels over multiple fiber strandsC、 an optical technology for transmitting up to 32 channels over multiple fiber strandsD、 a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDME、 a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM
Which device creates an OEO conversion？ （）A、 amplifierB、 attenuatorC、 regeneratorD、 light emitterE、 optical switchF、 optical receiverG、 fiber-optic cable
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications?（）A、They are both regions of lowest loss.B、They are both regions of low reflections.C、They are both regions of low index of refraction.D、They are both regions of low chromatic dispersion.E、They are both regions of low Polarization Mode Dispersion (PMD).
What are three relevant design considerations when using the 15216 EDFA? （）(Choose three.)A、dispersionB、Optical SNRC、span attenuationD、four wave mixingE、receiver sensitivity
A customer wants to install an IBM BladeCenter infrastructure but is concerned about the cost of the internal fibre switches. Consequently. the customer wants to use the Optical Pass-Thru Module （OPM）. What TRUE statement should be mentioned to the customer regarding the OPM？（）A、You can not put the Optical Pass-Thru Module in the same IBM BladeCenter chassis as a Cisco Intelligent Ethernet Switch.B、Using blade servers with the Optical Pass-Thru Module will require more fibre ports on the external fibre switch.C、The Optical Pass-Thru Module does not provide the customer with an opportunity to reuse their fibre switch.D、The blade servers do not work with the Optical Pass-Thru Module.
单选题A customer reports the optical drive is no longer responding. Which of the following questionsshould be asked FIRST?（）A“Did you log in with an administrator account?”B“Have you been to any inappropriate websites?”C“What have you changed since the optical drive worked properly?”D“What has changed since the optical drive worked properly?”
多选题What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）Alow optical poweBhigh optical powerCfew optical channelsDmany optical channelsElow chromatic dispersionFhigh chromatic dispersionGtoo much power differential in the optical channels
多选题What are three factors that limit the maximum distance of an amplified optical signal without regeneration? （）(Choose three.)Afiber dispersionBsignal attenuationCtransmitter powerDamplifier bandwidthEreceiver dispersion tolerance
单选题Which device creates an OEO conversion？ （）A amplifierB attenuatorC regeneratorD light emitterE optical switchF optical receiverG fiber-optic cable
多选题What are three factors that limit the maximum distance of an amplified optical signal without regeneration？ （）Afiber dispersionBsignal attenuationCtransmitter powerDamplifier bandwidthEreceiver dispersion tolerance
多选题Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems? （）(Choose three.)APIN photodiodesBzero-chirped lasersCErbium-doped fiber amplifiersDdispersion compensating fiberEdispersion compensating Bragg grating
单选题In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）A the signal to noise of the current optical amplifierB the signal to noise of the previous amplifier or sourceC the signal to noise introduced by the optical multiplexerD the accumulated noise to signal ratio of the optical channel
单选题Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）A They are both regions of lowest loss.B They are both regions of low reflections.C They are both regions of low index of refraction.D They are both regions of low chromatic dispersion.E They are both regions of low Polarization Mode Dispersion （PMD）.
多选题What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)Alow optical powerBhigh optical powerCfew optical channelsDmany optical channelsElow chromatic dispersionFhigh chromatic dispersionGtoo much power differential in the optical channels