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.
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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
A. fiber loss
B. OSNR level
C. post amplification
D. index of reflection
E. index of refraction
F. power post amplification budget
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
最新試題
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?（）
UPSR protection switching is initiated by （）, while BLSR is initiated by （）.
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?（）
On an ONS 15454 node you can tunnel an （）.
How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）
Which device creates an OEO conversion?（）
A Channel ID mismatch occurs when （）.
Scrambling of SONET signals is done to （）.
What are two important considerations when using 2- or 4-channel 15216 OADMs?（） (Choose two.)