A. fiber dispersion
B. signal attenuation
C. transmitter power
D. amplifier bandwidth
E. receiver dispersion tolerance
您可能感興趣的試卷
你可能感興趣的試題
Click the Exhibit button. When designing a DWDM system with multiple amplified spans, a pre-amp is needed at Site B to （）. (Choose three.)
A. offset the OADM loss at site b
B. overcome the high multiplexer loss at site a
C. amplify signal levels after the high loss through Fiber Span 1
D. adjust add channels at site B to be at the same level as the passthrough channels
E. ensure that the per channel power is higher than the minimum needed for the post-amp at Site b
A. The glass core is doped with an Erbium in periodic segments of the fiber.
B. Layers of high index ?and low index ?material are deposited on a glass substrate.
C. Thin layers of silica glass are placed onto wafers to produce a prism-like effect.
D. Fiber is etched with an ultraviolet laser that is precisely spaced for specific wavelength filtering.
A. 0.4 nanometers
B. 0.6 nanometers
C. 0.8 nanometers
D. 1.2 nanometers
E. 1.6 nanometers
A.0mW
B.1mW
C.10mW
D.1.5mW
A. amplifier
B. attenuator
C. regenerator
D. light emitter
E. optical switch
F. optical receiver
G. fiber-optic cable
最新試題
What three in combination are factors that can cause four-wave mixing in fiber-optic cables? （）(Choose three.)
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications?（）
In order to avoid misconnections due to a failed node in a Bidirectional Line Switched Ring (BLSR), Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?（）
What are three factors that limit the maximum distance of an amplified optical signal without regeneration? （）(Choose three.)
What are two important considerations when using 2- or 4-channel 15216 OADMs?（） (Choose two.)
SONET Path Terminating Equipment (PTE) requires which three line codes to be supported for DS1 and DS3 circuits?（） (Choose three.)
The dispersion of a non-zero dispersion shifted fiber is 6 ps/nm*km at 1550 nm and 10 ps/nm*km at 1610 nm. What is the minimum dispersion compensation required if an L-Band DWDM signal travels through 200 km of fiber and has a dispersion tolerance of 1800 ps/nm?（）
A Channel ID mismatch occurs when （）.
What is the difference between the transmitted power and the sensitivity of the receiver?（）
Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS-1 timing source?（）