多项选择题
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
Click the Exhibit button. What is the maximum allowable...
单项选择题
Click the Exhibit button. What is the maximum allowable loss budget between the ONS 15216 Mux (left side) composite output and the ONS 15216 Demux (right side) composite input, with the optical values given in the exhibit? （）(Assume the worst case loss of 4.5 dB for 15216 200 GHz Mux/Demux and ignore power penalties or extra margin.)
A.15dB B.17dB C.21dB D.26dB E.27dB
