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The requirements for TEM (Transverse Electromagnetic) modes in waveguides and explains why a single doped wafer cannot support TEM waves. It also covers the concept of critical angle and refraction in optics, including Brewster's law.
Typology: Exercises
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Ez만 있으면 TM모드.
5)True
1)False.Waveguides with a blank space inside cannot transmit TEM waves.
2)False.E//=0 , Bvertical= 3)True 4)True
1)false 전반사는 굴절률이 높은 곳에서 낮은 곳으로 진행할때 일어난다
3)true
4)false
5)false
tan(ip)=1/sin(60) ip=
When light is travelling from a denser medium to a rarer medium and the angle of incident is equal to the critical angle, the angle of refraction is 90. sin(icr)/sin90=1/n n=1/sin(icr) Brewster`s law tan(ip)=n, where ip is the polarising angle.
1)true 2)true 3)true 4)false 5)false (편광과 관계가 있 다 )
1)False.광 도파로 내 유효굴절은 전송 모드에 따라 변한다. 2)False.B= 3)True. 표면장은 전송 되는 빛이 광 도파로의 코어를 진행하는 과정에서 전자기장이 일부가 크래드로 일부가 빠지는 것이다. 4)True
5)false
짧은 거리는 거의 차이 없지만 장거리를 optical fiber 전송 용량이 더 크다
