Question

3. An optical fiber has a fused silica core index of 1.446 (a) What is the difference in transit time through 1 km of the fiber required by an axial ray and a ray entering at the maximum entrance angle of 35 degrees. (b) What should be the maximum frequency of input pulses in order to avoid overlapping pulses due to modal distortion at the output?

If you can write all of the numbers, variables and text clearly, with all of the parts completed, it would be much appreciated! Thank you in advance.

Answer 1

Asoer iven Heye other lig ht Yay incident on IKM-long at αn angle of incidence ern =35° fYoMaǐ Y. The refyeciva i The yefyoctive inden Let the argle of vefvockive light vey inside ndef the coe is the fibe ism en sine 66639

mo e, TM FyoM the fiue i is the cvitical ongle fyo the light insde the fiber, thongxis give by, e CY Tf n is the inden efractiocloiddi then Thon the inden of vetyoctiof clod dig bef

Then the Hodel distevtion is given ee, speedfthe aht is e 2.98 to ,uub-13212 (2-998大 m/s e.1188 2.998メ0,8 MIs) (t-31.72 (o12943) then the diffevence in Lvensit ine hwugh a lkh) -lo.ous1メ10-8.S/r:) (1kM

니 The frequeny of input pbs thot mon evevlppgpußesuput dlue to this case modo dispesionLe oduce 42.32 Hz