单项选择题
A. OSNR B. dispersion C. attenuation D. power budget E. amplifier spacing F. four wave mixing
Which three technologies are used to reduce chromatic d...
多项选择题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
What is the phenomenon called where different wavelengt...
单项选择题What is the phenomenon called where different wavelengths of light travel at different speeds?（）
A.OSNR B.dispersion C.light skew D.attenuation
A 2.5 Gb/s (OC-48 or STM-16) optical signal with a disp...
单项选择题A 2.5 Gb/s (OC-48 or STM-16) optical signal with a dispersion tolerance of 1200 ps/nm goes through fiber with 18ps/nm*km of dispersion. How many 15216-DCU-350 equivalents are needed for enough compensation after traveling 100 km?（）
A.none B.one C.two D.three E.four
