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單項選擇題

What is the difference between the transmitted power and the sensitivity of the receiver?（）

A. OSNR
B. dispersion
C. attenuation
D. power budget
E. amplifier spacing
F. four wave mixing

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多項選擇題

Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems? （）(Choose three.)

A. PIN photodiodes
B. zero-chirped lasers
C. Erbium-doped fiber amplifiers
D. dispersion compensating fiber
E. dispersion compensating Bragg grating

單項選擇題

What is the phenomenon called where different wavelengths of light travel at different speeds?（）

A.OSNR
B.dispersion
C.light skew
D.attenuation