A. 0 mW
B. 1 mW
C. 10 mW
D. 1.5 mW
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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
The ONS 15216 is a 32-channel system. The ONS 15216 OADMs are capable of adding and dropping one， two， or four channels. How are the OADMs provisioned to add and drop specific channels？（）
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）
What are two important considerations when using 2- or 4-channel 15216 OADMs？（）
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？（）
Click the Exhibit button. Which type of multiplexer is shown in the exhibit？（）
Click the Exhibit button. When designing a DWDM system with multiple amplified spans， a pre-amp is needed at Site B to （）.
What are three factors that limit the maximum distance of an amplified optical signal without regeneration？ （）
What is an advantage of an externally modulated laser over a directly modulated laser？ （）
Which two can be transported in one AU-4？ （）
What are three relevant design considerations when using the 15216 EDFA？（）