p36_010 - 3 2 (wavelengths) is eFectively the same as what...

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10. (a) We wish to set Eq. 36-11 equal to 1 2 , since a half-wavelength phase diFerence is equivalent to a π radians diFerence. Thus, L min = λ 2( n 2 n 1 ) = 620 nm 2(1 . 65 1 . 45) = 1550 nm = 1 . 55 µ m . (b) Since a phase diFerence of
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Unformatted text preview: 3 2 (wavelengths) is eFectively the same as what we required in part (a), then L = 3 2 ( n 2 n 1 ) = 3 L min = 3(1 . 55 m) = 4 . 65 m ....
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