单项选择题
Click the Exhibit button.
Which type of multiplexer is shown in the exhibit？（）
A. Thin Film filter
B. Fiber Bragg Grating
C. Arrayed Wave Guide
D. Erbium fiber amplifier
相关考题
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多项选择题
Whatarethreefactorsthatlimitthemaximumdistanceofanamplifiedopticalsignalwithoutregeneration？（）
A. fiber dispersion
B. signal attenuation
C. transmitter power
D. amplifier bandwidth
E. receiver dispersion tolerance -
单项选择题
Ifthedispersionofagivenfiberis17ps/nm*kmat1550nmandzeroat1310nm，thenwhatistheaccumulateddispersionofanITUwavelengthafterittravels200km？（）
A. 0 ps/nm
B. 340 ps/nm
C. 200 ps/nm
D. 3400 ps/nm
E. More information is needed. -
单项选择题
HowisaThinFilmfilterfabricated？（）
A. The glass core is doped with an Erbium in periodic segments of the fiber.
B. Layers of high index ？and low index ？material are deposited on a glass substrate.
C. Thin layers of silica glass are placed onto wafers to produce a prism-like effect.
D. Fiber is etched with an ultraviolet laser that is precisely spaced for specific wavelength filtering.
