单项选择题
Which device creates an OEO conversion？ （）
A. amplifier
B. attenuator
C. regenerator
D. light emitter
E. optical switch
F. optical receiver
G. fiber-optic cable
点击查看答案
相关考题
-
单项选择题
Whatisthedifferencebetweenthetransmittedpowerandthesensitivityofthereceiver？（）
A. OSNR
B. dispersion
C. attenuation
D. power budget
E. amplifier spacing
F. four wave mixing -
多项选择题
Whichthreetechnologiesareusedtoreducechromaticdispersionaccumulationinfiber-optictransmissionsystems？（）
A. PIN photodiodes
B. zero-chirped lasers
C. Erbium-doped fiber amplifiers
D. dispersion compensating fiber
E. dispersion compensating Bragg grating -
单项选择题
Whyarethe1300nmand1550nmregionsofthefiberspectrumprimarilyusedforopticalcommunications？（）
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）.
