A. 0 mW
B. 1 mW
C. 10 mW
D. 1.5 mW
您可能感興趣的試卷
你可能感興趣的試題
A. lower cost
B. higher chirp
C. easier to manufacture
D. higher dispersion tolerance
E. higher optical signal-to-noise ratio
A. OSNR
B. dispersion
C. light skew
D. attenuation
A. amplifier
B. attenuator
C. regenerator
D. light emitter
E. optical switch
F. optical receiver
G. fiber-optic cable
A. OSNR
B. dispersion
C. attenuation
D. power budget
E. amplifier spacing
F. four wave mixing
A. PIN photodiodes
B. zero-chirped lasers
C. Erbium-doped fiber amplifiers
D. dispersion compensating fiber
E. dispersion compensating Bragg grating
最新試題
Which device creates an OEO conversion？ （）
Which timing mode is appropriate for an SDH NE that is adjacent to an SDH NE Bits-1 timing？ （）
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）
Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems？（）
In SDH， what is the name of the embedded Data Communication Channel （DCC） in bytes D1-D3？（）
SDH Code Violations （CVs） totals in the PM tables are actually an accumulation of the number of（）.
Click the Exhibit button. The exhibit shows a 15454/15216 DWDM system and alarm indications. What are two possible sources of trouble shown in the system？（）
What are three factors that limit the maximum distance of an amplified optical signal without regeneration？ （）
Click the Exhibit button. When designing a DWDM system with multiple amplified spans， a pre-amp is needed at Site B to （）.
What protection method is used in 4F MS-SPRing networks？（）